tag:blogger.com,1999:blog-85967448736655774132024-03-18T16:48:09.220+07:00Vietnam WelderThe best welders supplier in Vietnam - Get access to www.vnmanpower.com to be supported.Anonymoushttp://www.blogger.com/profile/06222858404455756125noreply@blogger.comBlogger119125tag:blogger.com,1999:blog-8596744873665577413.post-88411817887832867832016-04-21T14:11:00.000+07:002016-04-21T14:17:46.489+07:004 greatest new technologies that are transforming welding today<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/--SSiS20IBJ8/Vxh6lVGwFfI/AAAAAAAADFw/jUV8ijp-FLga8k6-hNKBbn_ar1GYUCoDQCLcB/s1600/4%2Bgreatest%2Bnew%2Btechnologies%2Bthat%2Bare%2Btransforming%2Bwelding%2Btoday_5.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="4-greatest-new-technologies-that-are-transforming-welding-today_1" border="0" height="520" src="https://1.bp.blogspot.com/--SSiS20IBJ8/Vxh6lVGwFfI/AAAAAAAADFw/jUV8ijp-FLga8k6-hNKBbn_ar1GYUCoDQCLcB/s640/4%2Bgreatest%2Bnew%2Btechnologies%2Bthat%2Bare%2Btransforming%2Bwelding%2Btoday_5.jpg" title="4-greatest-new-technologies-that-are-transforming-welding-today" width="640" /></a></div>
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<b><i>Welding has been developing and evolving more quickly than ever before. New technology breakthroughs have made welding more accurate, efficient and cost-effective. Below is how they are revolutionizing welding!</i></b><br />
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You may also like reading:<br />
<a href="http://vietnamwelder.blogspot.com/2015/10/new-automotive-welding-technology.html" target="_blank"><i>New Automotive Welding Technology Expected to Create Much Stronger Bond</i></a><br />
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<b>1.<span style="white-space: pre;"> </span>Surface tension transfer process</b></h4>
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<a href="https://2.bp.blogspot.com/-phvfn_4Q5RE/Vxh7P9C0fAI/AAAAAAAADF4/RdT5VAe6fkUgOdhX1aMzTxV_EiNS4lYwwCLcB/s1600/4%2Bgreatest%2Bnew%2Btechnologies%2Bthat%2Bare%2Btransforming%2Bwelding%2Btoday_1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="4-greatest-new-technologies-that-are-transforming-welding-today_2" border="0" height="302" src="https://2.bp.blogspot.com/-phvfn_4Q5RE/Vxh7P9C0fAI/AAAAAAAADF4/RdT5VAe6fkUgOdhX1aMzTxV_EiNS4lYwwCLcB/s400/4%2Bgreatest%2Bnew%2Btechnologies%2Bthat%2Bare%2Btransforming%2Bwelding%2Btoday_1.png" title="Surface-tension-transfer-process" width="400" /></a></div>
Surface tension transfer process (STT) developed and patented by Lincoln Electric is intended for boosting productivity by replacing such older welding methods as gas metal arc welding, gas tungsten arc welding. The benefits of this process include: <b><a href="http://vietnamwelder.blogspot.com/2016/03/how-to-reduce-welding-fumes.html" target="_blank">reducing welding fumes</a></b> and typical spatters, decreasing amount of time spent to train someone in welding technology, and increasing speed. STT welding is ideal when working with stainless steels and galvanized steel.<br />
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<b>2. Friction stir welding</b></h4>
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<a href="https://1.bp.blogspot.com/-jynjT1Vexwg/Vxh7f0r4UwI/AAAAAAAADF8/kw-a6jRCl4YhA9FGnjuLIX2RpZADT1qHgCLcB/s1600/4%2Bgreatest%2Bnew%2Btechnologies%2Bthat%2Bare%2Btransforming%2Bwelding%2Btoday_2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="4-greatest-new-technologies-that-are-transforming-welding-today_3" border="0" height="297" src="https://1.bp.blogspot.com/-jynjT1Vexwg/Vxh7f0r4UwI/AAAAAAAADF8/kw-a6jRCl4YhA9FGnjuLIX2RpZADT1qHgCLcB/s400/4%2Bgreatest%2Bnew%2Btechnologies%2Bthat%2Bare%2Btransforming%2Bwelding%2Btoday_2.png" title="Friction-stir-welding" width="400" /></a></div>
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Automakers around the world are continuously looking for new ways to reduce manufacturing costs without scarifying quality and automotive safety. Companies like Honda Motor have relied on aluminum as a lower cost material, and to ensure the process of joining aluminum and steel is simple and safe, they have innovated new forms of friction stir welding. This new method helps generate more stable, secure bond between two materials by moving a rotating tool on the top of aluminum, which is then bonded to steel.<br />
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Honda engineers also have developed assembly line techniques that helps with mass production of vehicles utilizing friction stir welding – for example, a six-axis robot. According to the Assembly Manager, by replacing the conventional steel sub-frame with one comprising aluminum and steel, Honda engineers can reduce body weight by 25%. This highly efficient method also helped reduced up to 50% electricity costs during the welding process.<br />
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NASA – the hottest name in launch technology, has applied this innovative welding technique to develop the world’s largest welding tool. See more <b><a href="http://vietnamwelder.blogspot.com/2015/08/what-is-name-of-worlds-largest-welding-tool.html" target="_blank">here</a></b>.<br />
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<b>3. Laser welding</b></h4>
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Laser welding is quite new technique that involves conversing light energy into heat energy. The radiation emitted through laser welding allows beams to travel larger distances with suffering considerable loss of quality. Though initial costs for laser welding is higher than conventional spot welding methods, a significant reduction in cycle time eventually makes laser welding more efficient option.<br />
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<b>4. Resistance spot welding</b></h4>
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Resistant spot welding has to do with direct application of opposing forces using the pointed-tip electrodes. General Motors has availed this technique in producing lighter weight, more fuel-efficient vehicles from aluminum. By getting rid of about 2 pounds of rivets from the vehicles’ hood, doors and lift gates, engineers can utilize that weight surplus in other vehicle areas if necessary. Thanks to the resistance spot welding technology, aluminum pieces can be directly welded together using a multi-ringed dome electrode.<br />
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<b>Keep up with changes in welding technology</b></h4>
In wake of rapid development of new welding technology, it’s more important than ever for your welders to be most current about changes in the technology. Being familiar with STT, resistance spot welding and friction stir welding is especially important. Vietnam Manpower Service and Trading Company ensure supplying your company with welders who are willing to learn and keep up-to-date with modern technologies. For any demand, don’t hesitate to contact us: (+84) 949 594 116 I lana@vnmanpower.com<br />
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<br />Anonymousnoreply@blogger.com25tag:blogger.com,1999:blog-8596744873665577413.post-88884399301081507242016-04-07T17:02:00.001+07:002016-04-07T17:04:29.573+07:005 Very Important Persons in Welding - Did You Know?<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/-iey4hkc7M_Y/VwYTq4k0y1I/AAAAAAAADDA/qv3xg7tbK2gXB-mMyKtET3ip3cb2Zdoog/s1600/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow.jpeg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="432" src="https://1.bp.blogspot.com/-iey4hkc7M_Y/VwYTq4k0y1I/AAAAAAAADDA/qv3xg7tbK2gXB-mMyKtET3ip3cb2Zdoog/s640/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow.jpeg" width="640" /></a></div>
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<b><i>Welding has been around in our life and for thousands of years. Welding artifacts from the Bronze Age and Iron Age are displayed at many museums and undeniably, welders from all ages and backgrounds have contributed to welding and helped make it the way it is today. Still, there are people whose accomplishments make them most significant figures in welding.</i></b><br />
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<b><span style="color: #274e13;">1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Baron Auguste de Méritens</span></b></h4>
As a French electrical engineer living in 1800s, Baron August de Méritens was the first person to find out how to use the heat generated by arc to weld the lead plates onto manufacture storage batteries. In 1881, he got the French patent for the first arc welding process. Not all, he developed welding equipment with enclosed hood and fume extraction pipe to control hazardous lead oxide fumes from hot lead. This was the beginning of the carbon arc welding technique that are commonly used today, though it was Nikolay Benardos - Baron’s student – that went on to acquire a patent for creating the first electrode holder.<br />
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<b><span style="color: #274e13;">2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Nikolay Benardos</span></b></h4>
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<tr><td style="text-align: center;"><a href="https://1.bp.blogspot.com/-8GxAvCrmIJc/VwYUeF-3OqI/AAAAAAAADDI/2jrQWdiNXd8wuMQGZprp_wpMQW-FWGFIg/s1600/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow_2.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="285" src="https://1.bp.blogspot.com/-8GxAvCrmIJc/VwYUeF-3OqI/AAAAAAAADDI/2jrQWdiNXd8wuMQGZprp_wpMQW-FWGFIg/s400/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow_2.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i style="font-size: 12.8px;"><span style="font-size: x-small;"><span style="font-size: x-small; text-align: start;">A Soviet postage stamp solely dedicated to </span><span style="font-size: x-small; text-align: start;">N - the father of arc welding</span></span></i></td></tr>
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Nikolay Benardos was a down-to-earth Russian inventor of 18th century. He was credited with 200 inventions in the electrical engineering realm. Benardos not just invented and marketed electric welding but produced a special electric welding battery to supply needed current for electric welding jobs. His welding inventions can be named as welding with indirect arc, welding in a gas stream, arc cutting on land and underwater as well, carbon arc welding. Carbon arc welding become especially popular in 1890s and early 1900s as it allowed individuals to weld iron and lead.<br />
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<tr><td style="text-align: center;"><a href="https://3.bp.blogspot.com/-Nm30RkTaaCs/VwYkApOuBsI/AAAAAAAADDY/HQaqg6YPTDUUKB6N7xC-9SfTufx1ZbnCg/s1600/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow_3.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="400" src="https://3.bp.blogspot.com/-Nm30RkTaaCs/VwYkApOuBsI/AAAAAAAADDY/HQaqg6YPTDUUKB6N7xC-9SfTufx1ZbnCg/s400/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow_3.jpg" width="296" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: x-small; text-align: start;"><i>The patent for arc welding method named Elektrogefest granted to Benardos and his sponsor Stanisław Olszewski in 1887</i></span></td></tr>
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<b><span style="color: #274e13;">3. Nikolay Slavyanov</span></b></h4>
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Nikolay Slavyanov was another notable inventor from Russia who lived just about the same time as Nikolay Benardos. He introduced shielded arc welding 8 years or so after Benardos had invented carbon arc welding. Shielded arc welding is now one of most popular welding techniques in the world and is often used for maintenance and repair, construction of heavy steel structures and industrial fabrication. It works well in iron, aluminum, different types of steel, nickel and copper alloys.<br />
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<b><span style="color: #274e13;">4. Julio Gonzalez</span></b></h4>
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Born in Barcelona, Spain in late 1800s, Julio Gonzalez was a remarkable sculptor and painter. Indeed, he wasn’t the first artist to create metallic sculptures using welding. What made him stand out is not only that he was a master at <b><a href="http://vietnamwelder.blogspot.com/search/label/welding%20art%20projects" target="_blank">artistic welding</a></b> but also that he strongly influenced other famous sculptors who were interested in this field. Julio Gonzalez worked extensively with Pablo Picasso – one of greatest and most influential artists of 20th century. Gonzalez gave Picasso welder training and collaborated with him in creating many sculptures, among them is “La Tete Painte en Fer.” Julio Gonzalez is recognized as a top-notch artist from his time period. Over one hundred of his sculptures are now displayed in Museum of Modern Art (Valencia, Spain).<br />
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<b><span style="color: #274e13;">5. David Smith</span></b></h4>
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<tr><td style="text-align: center;"><a href="https://3.bp.blogspot.com/-p1nKtjtS5RI/VwYuFr4kUpI/AAAAAAAADEA/enSlz2dfMHUJ7SbG5KaLfU1jEx_hofO7A/s1600/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow_7.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="270" src="https://3.bp.blogspot.com/-p1nKtjtS5RI/VwYuFr4kUpI/AAAAAAAADEA/enSlz2dfMHUJ7SbG5KaLfU1jEx_hofO7A/s400/5%2BVery%2BImportant%2BPersons%2Bin%2BWelding%2B-%2BDid%2BYou%2BKnow_7.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i style="font-size: medium; text-align: start;"><span style="font-size: x-small;">David Smith is perhaps best known for the <b>Cubis</b>, which were among the last pieces he accomplished before his death. The sculptures in this series are made of stainless steel with a hand-brushed finish reminiscent of gestural strokes of Abstract Expressionist painting. The Cubi works consists of arrangements of geometric shapes, which shed light on his interest in balance and the contrast between positive and negative space.</span></i></td></tr>
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Borned in early 1990s, David Smith was an abstract expressionist American sculptor and painter. He is famous for using various styles of welding to create sculptures. His earlier works were created using oxyacetylene torch, but later he mastered his welding art with electric arc welder. He utilized various techniques for visual effects that looked like paintings, and made his sculptures using steel, cast bronze and other metals. Also, he was an <b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">accomplished welder </a></b>who worked at an auto-manufacturing factory and in locomotive construction at different points in his life.<br />
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<b><span style="color: #274e13;">The list is unfinished…</span></b></h4>
Welding has an <b><a href="http://vietnamwelder.blogspot.com/search/label/history%20of%20welding" target="_blank">ever-long and fascinating history</a></b>, and unsurprisingly, famous welders have been influenced by those that had gone before them. Even so, this famous welder list isn’t finished. Let’s await other amazing people entering the list; and who knows, one or some of them may be welders from your company. These days, welders around the world are working to master the art of welding by creating new techniques, <b><a href="http://vietnamwelder.blogspot.com/search/label/welding%20productivity%20improvement" target="_blank">improving quality and consistency</a></b> and creating new works of art.<br />
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Anonymousnoreply@blogger.com6tag:blogger.com,1999:blog-8596744873665577413.post-72481332752660066952016-03-31T10:52:00.000+07:002016-04-07T14:32:22.379+07:00Great Welding Art by This Vietnamese-French Will Leave You Speechless<b><i>I simply can’t find the exact word to describe these welding arts by artist Mylinh Nguyen. Eloborate? </i></b><b><i>Otherworldly? Incredible? Great? Just enjoy them yourself and let me know your thought…</i></b><br />
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Click <i style="font-weight: bold;"><a href="http://vietnamwelder.blogspot.com/search/label/welding%20art" target="_blank">here</a> </i>to have a look at some other cool looking welding arts.<br />
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Inspired by forms of living and extinct animals, artist, rather, modern-day wizard Mylinh Nguyen welds alien creatures out of bronze, brass and silver. She has utilized various machining techniques, and formed each creature after some weeks. They are originated first as unsystematic sketches in a notebook, and then evolve into permanent metal forms. Using metal, Nguyen manages to articulate even the most minute details of imaginary beings’ skeletons.<br />
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Let's enjoy them. (Photo credit is given to mylinh-nguyen.fr)<br />
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<br />Anonymousnoreply@blogger.com5tag:blogger.com,1999:blog-8596744873665577413.post-18413462048738740502016-03-24T11:45:00.003+07:002016-03-24T11:45:56.323+07:00Aluminum Welding Safety Precautions – Do You Know?<div class="separator" style="clear: both; text-align: left;">
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<b><i>Welding does raise safety issues, especially welding aluminum. But proper aluminum welding safety precautions will ensure your welders stay safe and sound, improving productivity. </i></b></div>
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Safety in welding has been a hot topic in this industry. Aside from general safety measures, <b>aluminum welding safety precautions</b> should be highlighted. You know, aluminum welding is different from other welding in many ways. Due to unique characteristics of aluminum, extra precautions need to be taken to ensure a safe and productive working environment. Ensure your welders are noticed of below things when welding this metal:</div>
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1. <b>The appearance of heated aluminum doesn’t change</b>. </div>
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It is much more difficult to differentiate cold material from hot material when welding aluminum. More complicatedly, aluminum has about 4 times the thermal conductivity of steel. That’s why welders are recommended to label the recently completed welds as ‘hot’ and wear leather gloves to reduce the injury risk. </div>
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2. <b>Aluminum welding can cause electric shock. </b></div>
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Just like steel welding, aluminum welding can cause electric shock, but for different reasons. In steel welding, a high-frequency arc starting option is initially applied, and then turn off in the end. In aluminum welding, this option must stay active for the weld duration; and in turn, the risk of electric shock increases. A well-insulated welding system and proper grounding can help protect welding workers in such cases.</div>
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3. <b>Aluminum has high reflectivity. </b></div>
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When welding steel, radiated light is a common concern, but it can be a serious problem in aluminum welding. Due to its high reflectivity, aluminum becomes a bigger threat when it comes to light-caused injuries. Luckily, such measures as long-sleeved clothing and light-blocking curtains can help minimize your exposure. </div>
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4. <b>Aluminum fumes are known as a throat irritant when inhaled, and can even cause a host of chronic symptoms. </b></div>
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These symptoms include decreased nervous system performance, pulmonary fibrosis, impaired cognitive function, bronchitis, pneumoconiosis, motor dysfunction, peripheral neuropathy. To protect their breathing zone and surrounding working area, welders should: ensure cleaned welding surfaces to avoid toxic exposure; position themselves to avoid breathing welding fumes (for example, stay upwind when welding in outdoor or open environments); apply general ventilation, natural or forced movement of fresh air; use local exhaust ventilation systems; consider substituting a less toxic or lower fume-generating welding type or consumable; have respiratory protection.</div>
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As you can see, there are safety issues from aluminum welding, but the proper precautions will ensure your welders stay safe and sound, improving productivity. Check out <b><a href="http://vietnamwelder.blogspot.com/search/label/safety%20in%20welding" target="_blank">here</a></b> to have more in-depth look at safety in welding. They are helpful information, tips given by <b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">Vietnam welding manpower supplier </a></b></div>
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Anonymousnoreply@blogger.com21tag:blogger.com,1999:blog-8596744873665577413.post-63100142587233728152016-03-17T15:39:00.002+07:002016-03-17T15:47:53.561+07:0012 Best Welding Songs for Your Playlist<div class="separator" style="clear: both; text-align: center;">
<a href="https://2.bp.blogspot.com/-sGOBd6aWcRk/VupuGfpG7yI/AAAAAAAAC9E/haNnn4DlRjMPSXy19yFWtiRvHOPCc921g/s1600/Best%2BWelding%2BSongs%2Bfor%2BYour%2BPlaylist.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="12-best-welding-songs-for-your-playlist" border="0" src="https://2.bp.blogspot.com/-sGOBd6aWcRk/VupuGfpG7yI/AAAAAAAAC9E/haNnn4DlRjMPSXy19yFWtiRvHOPCc921g/s1600/Best%2BWelding%2BSongs%2Bfor%2BYour%2BPlaylist.jpg" title="The-welding-man-song-by-cody-cooke" /></a></div>
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<b><i>Just wander around the Internet, searching for welding songs to find out that there have not been one full playlist of songs about this occupation on the Internet, not even a list of some nice songs. And funnily enough, there are lots of search results about wedding songs instead of welding songs. That’s why for the post today, I will be listing as many as good songs about welding for you to complete your welding playlist. Enjoy!</i></b><br />
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<b>1.<span class="Apple-tab-span" style="white-space: pre;"> </span>"Welding Burns" - Rod Picott</b></h4>
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This pure and simple song stole my heart right from the first time I heard it. Being a welder is the best thing in this world. Listening to this song, and you sure will be much prouder that you are one of <b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">hard working, tough welders</a></b>. And as it's so real, it can touch someone's heart deeply to the extent that makes them cry. “Some things you’re born to. Some things you better learn. My father was born bone, muscle and blood, and welding burns”. These lines kept lingering on my head and coming into my heart.<br />
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<b>2.<span class="Apple-tab-span" style="white-space: pre;"> </span>“He’s a welder” - E. Frank Murphy</b></h4>
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Love this song. Composed by a Canadian E. Frank Murphy, it is about a real welder. The video and the song match perfectly. “He used to be a pretty nice feller...but now, he's a welder.” Great lyrics!<br />
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E. Frank Murphy also has other welding songs and they are available on iTunes. They are, “He used to be a welder”, “He’s still a welder.”<br />
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<b>3. “Pipeline blues” - E. Frank Murphy</b></h4>
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The song rocks and nice pictures, too<br />
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<b>4.<span class="Apple-tab-span" style="white-space: pre;"> </span>“Jock the singing welder” – Sting</b></h4>
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This song is performed by Sting and appears on album “The last ship” (2013). The lyrics are great, and like other songs above, the welder in this song pulls off confident, optimistic, passionate, aspiring vibe. The song starts with “Any shipyard man can sing when he works upon the hull, Amongst the noise and the clamour that he all but disregards, So he'll sing to himself and no one pays him any mind, He's just another crazy welder in the shipyards.”<br />
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<b>5.<span class="Apple-tab-span" style="white-space: pre;"> </span> “Welding Man” - Cody Cooke</b></h4>
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A great song. It sounds like a welder’s sincere talks about his working life.<br />
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<b>6.<span class="Apple-tab-span" style="white-space: pre;"> </span>"Welding Son of a Gun" - Chuck Hawthorne</b></h4>
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The healing song has a timeless quality. It is about a gun who turned over a new leaf when deciding to become a welder. The welding machine puts holes in his shirt, but keeps his spirit clean, helps him get a cast-iron steady hand, a hammer-forged heart. Welding makes him shining more than ever.<br />
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<b>7.<span class="Apple-tab-span" style="white-space: pre;"> </span>“The Welder Master Of Mig” - The Whippet Beans</b></h4>
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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/qMsE_Zahyso" width="420"></iframe><br /></div>
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A fun song about welding. It is catchy with nice rhythm section.<br />
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<b>8.<span class="Apple-tab-span" style="white-space: pre;"> </span>“Only In America” - Brooks and Dunn</b></h4>
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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/GN1iI-DaJNw" width="560"></iframe><br /></div>
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This country song is not dedicated to welding, but it has one nice line about welder “a welder's son and a banker's daughter”.<br />
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<b>9.<span class="Apple-tab-span" style="white-space: pre;"> </span>“There's A Wild One Going On” - Tig Wired</b></h4>
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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/7eTtHVadGz0" width="420"></iframe><br /></div>
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This is a great song about welders, fitters, riggers, <b><a href="http://vnmanpower.com/en/search/pipe%2520fitter.html" target="_blank">pipe fitters</a></b>, boilermakers, etc...<br />
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<b>10.<span class="Apple-tab-span" style="white-space: pre;"> </span> “Neodymium Man” - Vicious Rumors</b></h4>
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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/pfnv8iPa_-Y" width="420"></iframe><br /></div>
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<b>11.<span class="Apple-tab-span" style="white-space: pre;"> </span>“Pipeline boys” - Boss Cotton & The Pipeline Boys</b></h4>
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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/stwO4Z8xpOU" width="420"></iframe><br /></div>
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<b>12.<span class="Apple-tab-span" style="white-space: pre;"> </span>Welding Trophy Song</b></h4>
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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/Yhn0cnwy3O8" width="560"></iframe><br /></div>
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I am just wondering what more good songs about welding are. If any song is missing from this list, let me know in the comment below.Anonymousnoreply@blogger.com5tag:blogger.com,1999:blog-8596744873665577413.post-64896214543694475422016-03-10T14:55:00.004+07:002016-03-10T14:58:12.554+07:00Powerful Tips to Boost Welding Productivity and Profitability<div class="separator" style="clear: both; text-align: center;">
<a href="https://4.bp.blogspot.com/-tFjG0iEpqQM/VuEoS-C24LI/AAAAAAAAC7w/APjk_HnaJ8w/s1600/Powerful%2Btips%2Bto%2Bboost%2Bwelding%2Bproductivity%2Band%2Bprofitability.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Powerful-Tips-to-Boost-Welding-Productivity-and-Profitability-1" border="0" height="425" src="https://4.bp.blogspot.com/-tFjG0iEpqQM/VuEoS-C24LI/AAAAAAAAC7w/APjk_HnaJ8w/s640/Powerful%2Btips%2Bto%2Bboost%2Bwelding%2Bproductivity%2Band%2Bprofitability.jpg" title="Powerful-Tips-to-Boost-Welding-Productivity-and-Profitability" width="640" /></a></div>
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<b><i>4 biggest welding challenges that create headaches for employers are justifying new equipment, increasing productivity, reducing cost, and finding skilled welders and/ or training new welding operators. How do you address these challenges? Below are practical tips for overcoming these pains, increasing productivity and profitability. </i></b></div>
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These pains are shown differently depending on a company’s business emphasis, organizational structure, management outlook. They are often interrelated, and the remedy to one pain usually improves the other areas. </div>
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Before giving you helpful tips, this post will first help better your understanding of your true cost of welding, which is an important 1st step when addressing the welding challenges. </div>
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<b><span style="color: #990000;">Understanding your true cost of welding</span></b></div>
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Many welding companies claim that people are their most important asset. In fact, most of the time, most of welding costs comes from labor (50%-85% of total expenses). According to various different industry sources, labor almost always constitutes manual and semi-automatic welding costs (85%), while 10% of the costs come filler materials, 3% from shielding gas and 2% from power. </div>
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But if human resources are so important, why do so many firms spend an excessive amount of effort on reducing equipment and consumables costs while neglecting the most important cost component – optimizing labor and welding efficiency? That can only be because these companies haven’t measured, tracked, analysed and enhanced the variables that impact their welding cost and operator factor (arc time/ total labor time). Unless you measure something, you can’t manage it. To this point, here is list of items and costs that you should measure and track over time to get a baseline for managing welding operation and deciding operator factor: </div>
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<i>Fixed costs (hard goods):</i></div>
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<a href="https://1.bp.blogspot.com/--jE9dWj2cWk/VuElP_mA4yI/AAAAAAAAC7c/9rE_56QaSuE/s1600/Powerful%2Btips%2Bto%2Bboost%2Bwelding%2Bproductivity%2Band%2Bprofitability_1.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Powerful-Tips-to-Boost-Welding-Productivity-and-Profitability-2" border="0" height="320" src="https://1.bp.blogspot.com/--jE9dWj2cWk/VuElP_mA4yI/AAAAAAAAC7c/9rE_56QaSuE/s320/Powerful%2Btips%2Bto%2Bboost%2Bwelding%2Bproductivity%2Band%2Bprofitability_1.jpg" title="welding-consumables " width="240" /></a></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Labor rate</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Overhead</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Filler metal (including deposition efficiency)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Shielding gas (if used)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Other consumables (grinding wheels, gun components, backing bars, anti-spatter compound, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Electricity</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Raw materials (per part, if applicable)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Materials related to rejection rates (important when working with exotic or highly allowed metals)</div>
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<i>Time-based costs and operator factor:</i></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Preparing welding metal (degreasing, shot blasting, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Preparing the joint (cutting, beveling, grinding, if applicable)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Assembling components (place in fixtures, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Applying anti-spatter compound, if used</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Pre-heating time, if required</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Positioning/ repositioning weldment, if required</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Tack welding components, if required</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Arc-on time</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Air time (moving between welds)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Interpass cooling time, if applicable</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Chipping slag</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Grinding spatter</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Grinding/ polishing the weld bead to final size/ appearance</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Getting rid of anti-spatter compound</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Welder self-inspecting the weld</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>QA/ QC inspection and tests</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Reworking/ repairing the welds and subsequent re-inspection and re-testing</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Time lost because of rejected components</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Changing electrodes (spool of wire, new stick rod, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Process changeover time (switch between Mig root and flux cored fill passes, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Cylinder swap-outs</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Post-weld heat treating costs and time, if applicable</div>
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Fixed costs are quite easy to track (just by looking at vendor invoices), which can reason why procurement analysts often focus much on them. Time-based costs and operator factor ask for more effort to measure and track. Still, the results are worth it. </div>
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<b><span style="color: #990000;">How to spot waste</span></b></div>
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To detect waste in a system, ask yourself this key question: <i>Is step B in a true preparation for step C or is it a compensation for inefficiency of step A?</i></div>
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If you spend time on such activities as chipping slag, grinding spatter, grinding welds down to the final size or re-working/ re-pairing parts, you aren’t really preparing the part for the next step in your manufacturing process. Indeed, you’re compensating for the inadequacies or undesired result of the previous step. Statistically, the labor time wasted by the compensatory activities decreases operator factor to 20% or lower in many operations. Efficient firms have an operator factor of 20-30% or higher, and they get significant financial savings as a result. </div>
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<b><span style="color: #990000;">Tips for reducing welding costs</span></b></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Understand the true cost of welding and react accordingly</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Lower the weld metal volume (prevent over-welding, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Minimize the rejection, reworking and scrap rates</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Eliminate pre-weld preparation steps (applying anti-spatter spray, etc.) </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Eliminate post-weld grinding of spatter and excessive weld metal</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Avoid paying overtime</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Lower wasted effort, unnecessary motions and delays</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Decrease arc time</div>
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For example, OEM Fabricators, Inc.- leading custom metal fabrication company in US., reduced its welding costs after using one type of machine, one wire and one gas for almost all of its welding. In the process, OEM managed to eliminate grinding, spatter, chipping slag, gas changeover time. The company also decreased weldment reposition and enhanced operator-to-operator consistency. </div>
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In case you like reading:</div>
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<a href="http://vietnamwelder.blogspot.com/2015/08/post-welding-operations-to-ensure-productivity.html" target="_blank"><i>Post Welding Operations to Ensure Productivity</i></a></div>
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<b><span style="color: #990000;">Tips for increasing productivity</span></b></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Decrease cycle time and arc-on time</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Improve the operator factor (arc time/ total labor time)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Raise the deposition rates/ travel speed</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Minimize rejection and reworking rates by welding it right first time</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Eliminate unnecessary/ unplanned downtime</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Understand root causes of bottlenecks and eliminate them</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Eliminate activities that fail to add value (implement Kaizen, etc.)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Implement lean manufacturing techniques</div>
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For those who are interested in:</div>
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<i><a href="http://vietnamwelder.blogspot.com/2015/07/delve-into-leadership-techniques-for-welding-quality-improvement.html" target="_blank">Delve into 3 Leadership Techniques for Welding Quality Improvement</a></i></div>
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<b><span style="color: #990000;">Tips for justifying new equipment</span></b></div>
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<a href="https://3.bp.blogspot.com/-UHbSuZgnO28/VuEnqQTrhWI/AAAAAAAAC7o/6QJlm1kIht8/s1600/Powerful%2Btips%2Bto%2Bboost%2Bwelding%2Bproductivity%2Band%2Bprofitability_2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Powerful-Tips-to-Boost-Welding-Productivity-and-Profitability-3" border="0" height="290" src="https://3.bp.blogspot.com/-UHbSuZgnO28/VuEnqQTrhWI/AAAAAAAAC7o/6QJlm1kIht8/s320/Powerful%2Btips%2Bto%2Bboost%2Bwelding%2Bproductivity%2Band%2Bprofitability_2.jpg" title="Tips-for-justifying-new-equipment" width="320" /></a></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Understand payback and ROI calculations that are used by owners, senior managers, accountants, banks</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Analyse and understand the true sources of welding costs</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Get energy efficiency and utility rebates</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Reduce maintenance costs/ time</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Minimize unscheduled downtime</div>
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For example, by working with the local utility Puget Sound Energy, Bellingham Technical College (USA) got a $1000 per welder financial incentive that help compensate for the cost of XMT and Maxstar welding power sources. The new inverters draw 1/3 to 1/6 less amperage the college’s old welders, removed nuisance circuit breaker trips and decreased utility bills by about $200 per year per welder. </div>
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<b><span style="color: #990000;">Tips for improving operator efficiency and/ or dealing with welder shortage</span></b></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use machines that are easier for your operators to set up and understand to reduce training time</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use machines that maintain/ ensure the optimum welding parameters ( for example, machines with parameter limiting/ lockout features)</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Enhance operator productivity/ efficiency to help remove the need to hire additional welders</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Conduct programs and procedures to improve operator skills and enhance consistency. </div>
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For example, Greenheck Fan Corporation - leading supplier of air movement and control equipment in U.S, had hard time finding welders, so it started its own internal training program. The company hire people that will be good employees for it, or take some of its existing good employees that are interested in becoming welders, and the company trains them to weld. It is good that they already know how to weld. Still, whatever welding experience, all welders are involved in the training program and learn what they need to know to weld at Greenheck Fan Corporation.</div>
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If you have hard time finding welders, you can rely on our welding manpower service. <b><a href="http://vnmanpower.com/" target="_blank">VMST</a></b> supply Vietnamese welding workers at all levels. They are dependable, have good code of ethic and willing to learn and will be well integrated into your workplace environment. </div>
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<span style="font-size: xx-small;"><i>The post is based on one article by Millerwelds.</i></span></div>
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Anonymousnoreply@blogger.com16tag:blogger.com,1999:blog-8596744873665577413.post-19116231140508541682016-03-03T11:29:00.004+07:002016-03-03T11:29:50.815+07:00 What Kind of Welding Fumes Management Your Facility Needs? <div class="separator" style="clear: both; text-align: center;">
<a href="https://4.bp.blogspot.com/-mC_qKoHtLBk/Vte8ACJBZzI/AAAAAAAAC5Q/FthmhxatrCM/s1600/What%2Bkind%2Bof%2Bwelding%2Bfumes%2Bmanagement%2Byour%2Bfacility%2Bneeds.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="What-Kind-of-Welding-Fumes-Management-Your-Facility-Needs" border="0" height="368" src="https://4.bp.blogspot.com/-mC_qKoHtLBk/Vte8ACJBZzI/AAAAAAAAC5Q/FthmhxatrCM/s640/What%2Bkind%2Bof%2Bwelding%2Bfumes%2Bmanagement%2Byour%2Bfacility%2Bneeds.jpg" title="What-Kind-of-Welding-Fumes-Management-Your-Facility-Needs" width="640" /></a></div>
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<b><i>Proper management of welding fumes is not only morally and legally imperative but also a proven way to improving productivity and quality. A safe and comfortable workplace helps better employee performance, boosts productivity and thus adds to your company’s competitive advantage. </i></b></div>
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<b><i><br /></i></b></div>
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You may also want to have a look at:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/search/label/welding%20health%20hazards" target="_blank"><i>Welding Health Hazards and Prevention That Your Welders Must Know About </i></a></div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2016/01/safety-in-welding.html" target="_blank"><i>2 Greatest Keys to Safety in Welding</i></a></div>
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<a href="http://vietnamwelder.blogspot.com/2015/10/avoid-welding-arc-flash.html" target="_blank"><i>Effectively avoid welding arc flash only if you understand those things</i></a></div>
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Below is a 4-phase approach that you can use to evaluate the kind of <b>welding fumes management</b> your facility needs. Each phase is a possible solution to managing fumes. If you find that the phase you are considering isn’t enough to help your shop, move on to the next one.</div>
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<b>1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Substitution</b></h3>
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Review welding processes of your shop. It is possible to reduce fume production by changing some of the current materials. For example, you can substitute the current shielding gas with a cleaner alternative. </div>
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<b>2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Isolation</b></h3>
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If substitution isn’t enough, consider capturing fumes by using vacuum extraction methods or through hoods arranged over welding zones. Fume extraction systems come in various shapes and sizes with assorted vacuum intensities and air volume displacement abilities. That means you have lots of options for<b> fume management</b>. </div>
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<b>3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Ventilation</b></h3>
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If the two phases above aren’t feasible, ensuring that your workshop has good airflow is an advisable way to <b>reduce welding fumes</b>. </div>
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<b>4.<span class="Apple-tab-span" style="white-space: pre;"> </span>Safe work practices</b></h3>
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Exposure to <b>welding fumes</b> can be reduced by improving the safety measures, using improved housekeeping methods, using better personal protective equipment, and even ensuring proper body positioning. For instance, such respiratory protection as half masks, dust masks, supplied air solutions can reduce your workers’ exposure to fumes. Still, these respirators will be fully effective if they are well maintained, properly fit and have clean filters. They also should be tested to make sure they are compliant to OSHA safety standards. By combining the utilization of better equipment with improved housekeeping practices, you can substantially reduce fume exposure in your workshop. </div>
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Though you’re recommended to consider these phases in order, any improvements to your shop are a positive. That’s why if using substitution and improved housekeeping practices are both feasible ways of <b>reducing welding fumes</b>, don’t just stop at substitution. </div>
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<i><span style="font-size: x-small;"><a href="http://vnmanpower.com/" target="_blank">Vietnam Manpower Service and Trading Company </a>(VMST) is most trusted supplier of Vietnamese welding manpower. For any demand, please contact: lana@vnmanpower.com, (+84) 949 594 116.</span></i></div>
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Anonymousnoreply@blogger.com4tag:blogger.com,1999:blog-8596744873665577413.post-6842152646133723972016-02-27T10:07:00.003+07:002016-02-27T10:07:31.125+07:00Best Practices in Recruiting and Retaining Welders<div style="text-align: justify;">
<b><i>A company’s goal is to create and sell products that serve its customers safely and effectively, and increasing profitability. A strong workforce is the key to accomplishing this goal. Below are best practices to find and keep skilled welders who work hard and produce much.</i></b></div>
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Related reading:<br />
<i><a href="http://vietnamwelder.blogspot.com/2015/09/6-best-ways-to-address-shortage-of.html" target="_blank">6 Best Ways to Address Shortage of Skilled Welders</a></i><br />
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<a href="https://1.bp.blogspot.com/-rixR8ZL7fiA/VtEO3y3TL6I/AAAAAAAAC4Q/X3hUjCAPgrc/s1600/Best%2BPractices%2Bin%2BRecruiting%2Band%2BRetaining%2BWelders.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Best-Practices-in-Recruiting-and-Retaining-Welders-1" border="0" height="266" src="https://1.bp.blogspot.com/-rixR8ZL7fiA/VtEO3y3TL6I/AAAAAAAAC4Q/X3hUjCAPgrc/s400/Best%2BPractices%2Bin%2BRecruiting%2Band%2BRetaining%2BWelders.jpeg" title="Best-Practices-in-Recruiting-and-Retaining-Welders" width="400" /></a></div>
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<b>1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Promote positives of welding to young people</b></h3>
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<a href="https://3.bp.blogspot.com/-qfb22Qlyehs/VtEPmbiTUfI/AAAAAAAAC4Y/2cNZnWIrWPo/s1600/tho%2Bhan%2B3.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Best-Practices-in-Recruiting-and-Retaining-Welders-2" border="0" height="181" src="https://3.bp.blogspot.com/-qfb22Qlyehs/VtEPmbiTUfI/AAAAAAAAC4Y/2cNZnWIrWPo/s400/tho%2Bhan%2B3.jpg" title="Promote-positives-of-welding-to-young-people" width="400" /></a></div>
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Welding has been cursed as a dirty, low-tech profession of last resort. As many workers today are more attracted to desk jobs, the perception of welding has left parents, students, career counselors to dissuade potential workers elsewhere. </div>
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What is often untold is that welding is a challenging career with potential for income and mobility. It isn’t exaggerating to say that welders help build the world. In the fields from construction, car racing to manufacturing, welders use their skills to join metal together to proper specifications and strength. Many high-growth industries rely on welding – for example, energy and structural fabrication. Welding is indispensable for construction, maintenance and repair in all these sectors. Newly-trained welders can earn on par with a 1st year degreed mechanical or civil engineers. Compensation grows when welders gain experience. Significant increases are drawn when travel is required.</div>
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Promoting the positives of welding careers to students, parents, and career counselors is critical. Trained welders and their employers should be involved with the local high schools, trade programs, welding competitions. This way, students can directly meet with successful and <b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">established welders</a></b>, who can verify the benefits. Also, employers can approach their future workers. </div>
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Also, promoting welding as a high-tech industry makes it more appealing to the young. Welding has involved almost the same level of technology as other professions and can offer the same challenges. <b><a href="http://vietnamwelder.blogspot.com/search/label/robotic%20welding%20operator" target="_blank">Robotic welding</a></b> is among the industry’s fastest growing segments.</div>
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<b>2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Offer effective training on new technologies, machines and consumables to the existing workforce</b></h3>
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<a href="https://1.bp.blogspot.com/-m86NadVj9vY/VtEQnPqLgLI/AAAAAAAAC4g/qRMjRGzWStQ/s1600/train%2Bwelders.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Best-Practices-in-Recruiting-and-Retaining-Welders-3" border="0" height="223" src="https://1.bp.blogspot.com/-m86NadVj9vY/VtEQnPqLgLI/AAAAAAAAC4g/qRMjRGzWStQ/s400/train%2Bwelders.jpg" title="train-existing-workforce" width="400" /></a></div>
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That way helps keep workers engaged in their jobs. Workers need to feel they are among contributors to the company’s success. A company’s investment in training its workers communicates its commitment to its employees’ future and can be substantially more cost effective than hiring and training new workers.</div>
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<b>3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Stress safety as a culture</b></h3>
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<a href="https://1.bp.blogspot.com/-X8UeNLxtYwo/VtESv897NEI/AAAAAAAAC4s/ReLv0T0tJ2I/s1600/Stress%2Bsafety%2Bas%2Ba%2Bculture.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Best-Practices-in-Recruiting-and-Retaining-Welders-4" border="0" height="265" src="https://1.bp.blogspot.com/-X8UeNLxtYwo/VtESv897NEI/AAAAAAAAC4s/ReLv0T0tJ2I/s400/Stress%2Bsafety%2Bas%2Ba%2Bculture.jpg" title="Stress-safety-as-a-culture" width="400" /></a></div>
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A workplace stressing safety as a culture can be more inviting and allows workers to work their best. This should involve repetitive <b><a href="http://vietnamwelder.blogspot.com/search/label/welding%20health%20and%20safety" target="_blank">safety-in-welding</a></b> training, regular assessment of work practices, safety standards, OSHA requirements. Employers should also allow workers to engage in open discussions and to suggest safe work habits.</div>
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Installing a welding fume-extraction system may be one solution to giving adequate ventilation. It can also communicate a message of your appreciation to your employees, which can contribute to improved <b><a href="http://vietnamwelder.blogspot.com/search/label/welder%20motivation" target="_blank">recruitment and retention</a></b>.</div>
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Overall, all of these practices help develop a safer, more productive working environment. This help reduce injuries, employees’ compensation and lost days. </div>
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Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-8596744873665577413.post-89262066036846031682016-02-19T16:58:00.001+07:002016-02-19T17:03:40.490+07:00What Qualities Make a Good Welder?<div style="text-align: justify;">
<b><i>What exactly you should look for in your potential welders? These are traits that help you decide who are more attractive in the candidate pools, who have more advantages to win in the recruitment competition. </i></b></div>
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<a href="https://3.bp.blogspot.com/-Ped5KYCEPaw/VsbcmwqyuiI/AAAAAAAAC24/Wj6DiNXcifM/s1600/What%2Bqualities%2Bmake%2Ba%2Bgood%2Bwelder.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="What-Qualities-Make-a-Good-Welder" border="0" height="240" src="https://3.bp.blogspot.com/-Ped5KYCEPaw/VsbcmwqyuiI/AAAAAAAAC24/Wj6DiNXcifM/s320/What%2Bqualities%2Bmake%2Ba%2Bgood%2Bwelder.jpg" title="What-Qualities-Make-a-Good-Welder" width="320" /></a></div>
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<b>1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Dependability</b></h3>
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Find for employees you can trust to do their jobs correctly and consistently. They come to work prepared and punctually, and complete their work without constant supervision. Another main aspect of dependability is responsibility. A good employee is someone you can trust to be honest, safe and concerned about others’ well-being. </div>
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<b>2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Sociability</b></h3>
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Being a worker means being part of a team, so being sociable is an essential trait of a good employee. They must be able to get along with their peers and supervisors. </div>
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<b>3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Initiative</b></h3>
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Those with initiative are willing to get out of the box, begin assignments without being asked, and go beyond the minimum expectations. A worker’s initiative is a way for you to gauge the worker’s passion for welding and their ability to handle more complicated tasks. </div>
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<b>4.<span class="Apple-tab-span" style="white-space: pre;"> </span>Ability to communicate</b></h3>
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Communication is closely related to sociability. A productive, safe laborforce is a closely integrated team that can effectively communicate both verbally and in writing. Effective verbal communication means speaking clearly, concisely, with correct grammar, complete thoughts, maintaining a confident, enthusiastic tone. Writing effectively requires correct grammar, correct spelling and concise, legible writing. </div>
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<b>5.<span class="Apple-tab-span" style="white-space: pre;"> </span>Ability to read</b></h3>
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<b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">Good welders</a></b> are able to read written information and instructions well. They also need be able to read the industry specific terminology, measurements and such documents as blue prints, graphs, charts. </div>
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<b>6.<span class="Apple-tab-span" style="white-space: pre;"> </span>Problem solving skills</b></h3>
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Just like other workers in the skilled trades, welders are required to be great problem solvers who care for details. They have to discover flaws with designs and materials, deal with broken areas, and know how to repair worn part or/ and equipment.</div>
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<b>7.<span class="Apple-tab-span" style="white-space: pre;"> </span><a href="http://vietnamwelder.blogspot.com/2015/11/math-for-welders.html" target="_blank">Math skills</a></b></h3>
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Knowledge of math is among most-sought skill sets. There are numerous math skills applications required by welding positions – for example, determining welding angles, selecting the proper electrode diameter, calculating deposition rates, etc.</div>
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<b>8.<span class="Apple-tab-span" style="white-space: pre;"> </span>Science skills</b></h3>
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Like math, science is a coveted skill by employers. Give plus point to job candidates with understanding of metallurgy. Employees that know about metallurgy not only know how to weld metals but also know why welding works, what metals can be combined and how the metals will react to applications and environments. Also, employers are interested in workers that can solve problems by applying the scientific method. </div>
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<b>9.<span class="Apple-tab-span" style="white-space: pre;"> </span>Knowledge of existing codes</b></h3>
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Knowing existing welding codes and code skills shows the candidate’s diverse abilities as a welder and their dedication to expanding their skill base. This also shows that they have initiative. The candidate with knowledge of codes specifically needed by a potential employer will earn an immediate advantage over other applicants for that job. </div>
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<b>10.<span class="Apple-tab-span" style="white-space: pre;"> </span>Knowledge of welding</b></h3>
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Of course, knowing how to use a welding tool effectively is the most critical of all the skills on this list. </div>
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<b><a href="http://vnmanpower.com/" target="_blank">VMST </a></b>is committed to supplying you with right welding manpower. For any demand for Vietnamese welders, don’t hesitate to contact us: lana@vnmanpower.com, (+84) 949 594 116.</div>
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Anonymousnoreply@blogger.com2tag:blogger.com,1999:blog-8596744873665577413.post-19238325535186574862016-01-29T17:22:00.001+07:002016-01-29T17:25:05.599+07:002 Greatest Keys to Safety in Welding<div style="text-align: justify;">
<b><i>Measures to safety in welding do more than just establishing and maintaining compliance with regulatory guidelines. </i></b></div>
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Related reading:</div>
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<a href="http://vietnamwelder.blogspot.com/2015/07/5-key-steps-towards-best-welding-environment.html" target="_blank"><i>5 Key Steps towards Best Welding Environment</i></a></div>
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Different welding operations have different needs. Processes, equipment and welder skill set vary. Similarly, different companies have different safety requirements. But employee safety always should be prioritized. Taking the right precautions to protect your welders can limit the negative effects on production, and increase your employee acceptance of safety regulations. </div>
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<b>What can you benefit from developing a safe work environment?</b></h3>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>A safe welding environment can save your money by decreasing liabilities.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>It can help attract and retain skilled employees. <b><a href="http://vietnamwelder.blogspot.com/search/label/welder%20motivation" target="_blank">Attraction and retention of good welders</a></b> are extremely important considering the welding skills shortage. </div>
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You can learn more about welding skills gap and how to overcome it here:</div>
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<a href="http://vietnamwelder.blogspot.com/2015/09/welding-skills-gap-presenting.html" target="_blank"><i>Welding Skills Gap Presenting Opportunities to Employers and Skilled Workers</i></a></div>
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<a href="http://vietnamwelder.blogspot.com/2015/09/6-best-ways-to-address-shortage-of.html" target="_blank"><i>6 Best Ways to Address Shortage of Skilled Welders</i></a></div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Directly involving employees in efforts to developing a safer work environment is beneficial to employee morale. That’s because it would empower your welders themselves to be proactive in keeping themselves safe. </div>
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<b>Keys to a safe welding environment</b></h3>
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To create a clean, safe and comfortable work environment, consider hazard assessments, training, communication and appropriate selections of welding safety products. </div>
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<b>1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Hazard assessments</b></div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-LNajZPbSVn0/Vqs3oyzNR0I/AAAAAAAACzA/cOg_zt0MgDg/s1600/Hazard%2Bassessment.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="2-Greatest-Keys-to-Safety-in-Welding-1" border="0" height="297" src="http://3.bp.blogspot.com/-LNajZPbSVn0/Vqs3oyzNR0I/AAAAAAAACzA/cOg_zt0MgDg/s400/Hazard%2Bassessment.jpg" title="safety-fail" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>Serious safety fail</i></td></tr>
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Carry out hazard assessments to unfold problematic areas within your workshop. The assessment should include workers and potentially an industrial hygienist. This practice not just betters your understanding of the welding environment, but encourages both managers and welders to pay closer attention to the safety details that may otherwise pass unnoticed. </div>
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Engage workers in hazard assessments by reviewing the recordable injuries and potential safety risks, and then working with them for corrective actions. Managers should also challenge workers to look at overall safety in the weld cell and suggest improvements. </div>
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Also, you can assess and address <b><a href="http://vietnamwelder.blogspot.com/search/?q=hazards" target="_blank">welding safety hazards</a></b> utilizing OSHA’s Hierarchy of Controls. This hierarchy consists of 4 steps – process modification/ substitution, engineering controls, work practice controls, and personal protective equipment (PPE). Specifically,</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Process modification/ substitution: Changing the entire welding process or adjusting it can help improve safety. For example, you may want to replace manual welding with automatic welding. That so doing can create more efficiency in production for some applications, while also enhancing safety by creating a barrier between your operator and process. This approach can be costly and doesn’t suit to all applications.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Engineering controls: If welding fume is a problem with your facility, you can install fume extraction system to minimize exposure to your welders. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Work practice controls: You can directly involve your workers with organizing the weld cell and applying lean initiatives (5S, etc.). These practices help create effective workflow and safer work-space. Activities range from organizing equipment and tools to reducing slips, trips and falls. When having the right tools nearby, workers will be less fatigued while improving their work productivity. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>PPE: To select the correct PPE for the job, you should conduct a job safety analysis. The goal is to find the PPE that provides the appropriate level of protection and don’t interfere with a welder’s normal activities at the same time.<br />
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<b>2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Training</b></div>
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<a href="http://3.bp.blogspot.com/-mEdE07GZVrI/Vqs6B9vDPJI/AAAAAAAACzM/tmDckvDwbCo/s1600/safety%2Bwelding%2Btraining.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="2-Greatest-Keys-to-Safety-in-Welding-2" border="0" height="320" src="http://3.bp.blogspot.com/-mEdE07GZVrI/Vqs6B9vDPJI/AAAAAAAACzM/tmDckvDwbCo/s400/safety%2Bwelding%2Btraining.jpg" title="welding-safety-training" width="400" /></a></div>
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Always communicate changes implemented as a result of hazard assessments, and train workers appropriately if a process has changed or new product introduced. Topics to cover in the training often include:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Review of the hazard assessment process, the findings and actions.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The OSHA regulations related to the hazard found and solutions to it. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>How to use the safety products or processes applied in routine and emergency situations.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Proper maintenance practices for safety equipment.</div>
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You can rely on qualified veteran workers to conduct peer training, which would encourage positive interaction among your workers. Also, in some cases, equipment manufacturers and distribution partners provide product training for their customers.<br />
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<b>3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Communication</b></div>
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<a href="http://2.bp.blogspot.com/-DPZZu0EYRRQ/Vqs6cdY2jeI/AAAAAAAACzU/hmkTcnbcOvk/s1600/safety%2Btraining.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="2-Greatest-Keys-to-Safety-in-Welding-3" border="0" height="300" src="http://2.bp.blogspot.com/-DPZZu0EYRRQ/Vqs6cdY2jeI/AAAAAAAACzU/hmkTcnbcOvk/s400/safety%2Btraining.jpg" title="welding-safety-discussion" width="400" /></a></div>
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Share findings, changes and improvements with both managers and welders. Frequent safety discussions encourage worker involvement, cement relationships with the organization and help monitor and assess safety initiatives consistently.<br />
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<b>4.<span class="Apple-tab-span" style="white-space: pre;"> </span>Selecting welding safety products</b></div>
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<a href="http://3.bp.blogspot.com/-kjkYO6lBTTw/Vqs6tYXe1WI/AAAAAAAACzc/tTYab-bbQOY/s1600/welding%2Bsafety%2Bproducts.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="2-Greatest-Keys-to-Safety-in-Welding-4" border="0" height="400" src="http://3.bp.blogspot.com/-kjkYO6lBTTw/Vqs6tYXe1WI/AAAAAAAACzc/tTYab-bbQOY/s400/welding%2Bsafety%2Bproducts.jpg" title="welding-safety-products" width="400" /></a></div>
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Having the suitable safety products is crucial in the welding environment. And it goes beyond compliance – it has to do with helping welders achieve greater safety and comfort. Consider the following:</div>
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<i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Welding apparel and gloves</i></div>
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These items should fit properly and come in good condition. Proper fit would help minimize injuries and encourages welders to continue wearing the gear for such other tasks as grinding, material handling. There are items available for superior fit – for example, gloves with 3-D pattern for maximized dexterity. </div>
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Importantly, always select the proper protection for each application. Make sure you consider the material type and thicknesses of the product. For instance, there are light and heavy duty welding jackets and gloves for various welding processes and levels of amperage. Involve workers in this selection process. If welders like the products, they will be more likely to take proper care of them. </div>
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Clean and replace the welding apparel and gloved as recommended by the manufacturer, or sooner if needed. </div>
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<i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Welding helmets</i></div>
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Select helmets depending on the welding application. Be sure to adjust the headgear properly for best protection and clear viewing area. Always read the manual and follow the instructions for adjustment. </div>
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Such features as electromagnetic sensing can also help improve welders’ safety and comfort, especially if the welders have an obstructed view of weld joint. This technology, indeed, works through sensors that pick up the arc’s magnetic frequency, eliminating obstruction-caused interference issues. </div>
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<i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Welding respirators</i></div>
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Respirators are categorized as air-purifying or atmosphere-supplying. The air-purifying respirators come with filters and/ or cartridges that eliminate contaminants from the air by filtering them before they reach the welder. The atmosphere-supplying respirators offer clean air from an uncontaminated source. Use assigned protection factor (APF) rating to know the workplace level of protection that each respirator is expected to give when maintained properly.</div>
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Be sure to select respirators suitable for welding. Disposable masks must be made of the flame-retardant filter media. Half-mask respirators should be low profile to fit comfortably under the welding helmet without obstructing a welder’s field of vision. Similarly, powered air purifying respirators (PAPRs) and low-profile supplied-air respirators helps enhance operator mobility. Be sure that these are paired with the welding helmet that fits application requirements. Again, encourage a panel of welders to involve in the selection process. You can also consult with an industrial hygienist for particular details for each welding operation and respirator type. </div>
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To instruct welders about mandatory and voluntary usage, you need develop a written respiratory protection program with such information as respirator selection, medical evaluations, fit-testing for tight-fitting aspirators, use in routine and emergency situations, established schedules for cleaning, procedures to ensure the air quality and airflow for the atmosphere-supplying respirators, employee training.</div>
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<i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Welding fume extractors</i></div>
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If your company uses the fume extraction systems, welders should understand how to use these machines properly for best protection result. </div>
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The fume extraction arm should be mounted at a 45-degree angle above the arc, at most 18 inches away from the welding area. Still, because welders focus so much on the quality and productivity, they may not always make such adjustments to the arm. There are fume extraction systems in the market that provide an extended fume-capture distance. With them, welders can position the arm at the beginning of welding to gain protection throughout the process. </div>
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<i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Heat stress equipment</i></div>
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Heat stress results from high-temperature environment, welding arc, protective clothing. It can reduce productivity and raise errors. Indeed, productivity decreases by 2% for every degree over 77oF.</div>
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Solutions to heat stress can be - using cooling products, choosing the right apparel. Cooling products help reduce body temperature and improve workers’ well-being. Some cooling devices adapt to the welding helmets to give constant airflow over the welder’s head and face; these can lower the temperature by up to 17 degrees. Selecting the right apparel can also tackle heat stress. For example, in warmer climates, select lighter-weight welding jackets that are still capable of giving the right level of protection. </div>
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<b>To wrap up,</b></h3>
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Welder involvement and appropriate safety products are the rightest keys to <b>safety welding</b>. Implementing welding safety measures doesn’t need to be a top-down activity. Involving workers and encouraging them to give insight can go far in developing a safe welding operation and sustaining it. Also, selecting dependable safety equipment is important. More durable items last longer, reducing costs. Safety products fitting well and easy to use would reduce downtime and raise worker acceptance. </div>
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<span style="font-size: x-small;">Vietnam Manpower Service and Trading Company - Trusted welding manpower placement agency in Vietnam. We commit to providing welders with required skills and good understanding of safety in welding. For any inquiries, please contact: (+84) 949 594 116, lana@vnmanpower.com, <a href="http://vnmanpower.com/">http://vnmanpower.com/</a></span></div>
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Anonymousnoreply@blogger.com7tag:blogger.com,1999:blog-8596744873665577413.post-69059889087852414232016-01-21T14:35:00.002+07:002016-03-31T11:01:14.741+07:00This Is How Vietnam Welders Transform Trash into Beast, Cyclo<b><i>Welders from Vietnam have unlashed their creativity to turn industrial scraps into elaborate welding arts. This is how they rock it!</i></b><br />
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<a href="http://1.bp.blogspot.com/-YiXXmGceg-0/VqCHuQY4zqI/AAAAAAAACxI/cUmOVd53AUA/s1600/welding%2Barts%2Bcreated%2Bby%2BVietnam%2Bwelders.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-1" border="0" height="426" src="https://1.bp.blogspot.com/-YiXXmGceg-0/VqCHuQY4zqI/AAAAAAAACxI/cUmOVd53AUA/s640/welding%2Barts%2Bcreated%2Bby%2BVietnam%2Bwelders.JPG" title=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo" width="640" /></a></div>
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Workers are fully equipped with tools for creating <b><a href="http://vietnamwelder.blogspot.com/search/label/welding%20art%20ideas" target="_blank">innovative welding arts</a></b>.<br />
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<a href="http://1.bp.blogspot.com/-jZhrBnTTt9k/VqCEZaTAGII/AAAAAAAACwI/gsC9BfH-Mz0/s1600/equipment%2Bfor%2Bcreating%2Bmetal%2Bart%2Bworks.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-2" border="0" height="266" src="https://1.bp.blogspot.com/-jZhrBnTTt9k/VqCEZaTAGII/AAAAAAAACwI/gsC9BfH-Mz0/s400/equipment%2Bfor%2Bcreating%2Bmetal%2Bart%2Bworks.JPG" title="equipment-for-creating-metal-art-works" width="400" /></a></div>
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<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-CboEBpMtH4I/VqCE8jkYkvI/AAAAAAAACwQ/oR1xeaxmNkM/s1600/special%2Bwelding%2Btools%2Bused%2Bfor%2Bsmall%2Bwelds.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-3" border="0" height="266" src="https://3.bp.blogspot.com/-CboEBpMtH4I/VqCE8jkYkvI/AAAAAAAACwQ/oR1xeaxmNkM/s400/special%2Bwelding%2Btools%2Bused%2Bfor%2Bsmall%2Bwelds.JPG" title="special-welding-tools-used-for-small-welds" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="text-align: start;"><i><span style="font-size: x-small;">Special welding tools are used when it comes to small welds that require high accuracy.</span></i></span></td></tr>
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Industrial scraps like hoses, spark plugs, motorcycle plugs, etc. are collected from garages and scrap buyers. They are then cleaned, grinded and polished before being assembled and fabricated.<br />
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<a href="http://4.bp.blogspot.com/-aFdCfpJHtgI/VqCF554YwYI/AAAAAAAACwc/0jSBFUixcQM/s1600/industrial%2Bscraps.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-4" border="0" height="266" src="https://4.bp.blogspot.com/-aFdCfpJHtgI/VqCF554YwYI/AAAAAAAACwc/0jSBFUixcQM/s400/industrial%2Bscraps.JPG" title="industrial-scraps" width="400" /></a></div>
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When all needed are in good shape, it’s welders’ turn to transform the scraps into beautiful arts. They are really artists when creating original, splendid items using their creativity, great care and nicety of detail.<br />
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<a href="http://2.bp.blogspot.com/-9cOpuq2bNLo/VqCGmGg6MoI/AAAAAAAACww/Q0izpd6OuxI/s1600/welders%2Bin%2Bgood%2Bshape%2Bfor%2Bcreating%2Bwelding%2Barts.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-5" border="0" height="266" src="https://2.bp.blogspot.com/-9cOpuq2bNLo/VqCGmGg6MoI/AAAAAAAACww/Q0izpd6OuxI/s400/welders%2Bin%2Bgood%2Bshape%2Bfor%2Bcreating%2Bwelding%2Barts.JPG" title="welders-in-good-shape-for-creating-welding-arts" width="400" /></a></div>
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<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-ayXqa_0Ja-o/VqCGLCx3clI/AAAAAAAACwo/Tctsda8PYRs/s1600/Vietnam%2Bwelders%2Bcreating%2Bwelding%2Barts%2Bfrom%2Bscraps.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-6" border="0" height="266" src="https://3.bp.blogspot.com/-ayXqa_0Ja-o/VqCGLCx3clI/AAAAAAAACwo/Tctsda8PYRs/s400/Vietnam%2Bwelders%2Bcreating%2Bwelding%2Barts%2Bfrom%2Bscraps.JPG" title="Vietnam-welders-creating-welding-arts-from-scraps" width="400" /></a></td></tr>
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<span style="font-size: x-small; text-align: start;"><i>It often takes 3-5 years for a welder to become proficient in welding small details. And it takes lots of steps to create an art work. </i></span></td></tr>
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<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-APsdXhgAR4I/VqCG_wjvy_I/AAAAAAAACw4/vloI3Zw2hJM/s1600/in%2Bprocess%2Bto%2Bmake%2Bmotorcycle%2Bwelding%2Barts.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-7" border="0" height="266" src="https://3.bp.blogspot.com/-APsdXhgAR4I/VqCG_wjvy_I/AAAAAAAACw4/vloI3Zw2hJM/s400/in%2Bprocess%2Bto%2Bmake%2Bmotorcycle%2Bwelding%2Barts.JPG" title="in-process-to-make-motorcycle-welding-arts" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: x-small; text-align: start;"><i>To make a motorbike, workers need create lots of parts from scraps. The scraps are classified in ways that suit to each part of the vehicle. For example, the engine is made of 6 spark plugs; scrap bearings are used to make wheels; gas tanks are created from water valves. Also, iron bars are bent into appropriate shapes. </i></span></td></tr>
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The welded parts are then color plated and polished for finished products like these. They are well loved for their uniqueness and creativity.<br />
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<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-YiXXmGceg-0/VqCHuQY4zqI/AAAAAAAACxE/Ha0Jj9No7Dk/s1600/welding%2Barts%2Bcreated%2Bby%2BVietnam%2Bwelders.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-8" border="0" height="266" src="https://3.bp.blogspot.com/-YiXXmGceg-0/VqCHuQY4zqI/AAAAAAAACxE/Ha0Jj9No7Dk/s400/welding%2Barts%2Bcreated%2Bby%2BVietnam%2Bwelders.JPG" title="welding-arts-created-by-Vietnam-welders" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: x-small;"><i>Welding arts created by <a href="http://vietnamwelder.blogspot.com/search/?q=vietnam" target="_blank">Vietnam welders</a></i></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-frdDtgf90Pk/VqCI8qW6sKI/AAAAAAAACxQ/wR5rNptx-AQ/s1600/cyclo%2Bwelding%2Bart%2Bmade%2Bfrom%2BVietnam%2Bwelder.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt=" This-is-how-Vietnam-welders-transform-trash-into-beast-cyclo-9" border="0" height="266" src="https://2.bp.blogspot.com/-frdDtgf90Pk/VqCI8qW6sKI/AAAAAAAACxQ/wR5rNptx-AQ/s400/cyclo%2Bwelding%2Bart%2Bmade%2Bfrom%2BVietnam%2Bwelder.JPG" title="cyclo-welding-art-made-by-Vietnam-welders" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: x-small;"><i><span style="font-size: x-small;">Cyclo welding art. </span></i><span style="font-size: x-small;"><i>The cyclo is a 3-wheel bicycle taxi appearing in Vietnam during the French colonial period following a failed attempt to introduce rickshaws.</i></span></span></td></tr>
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The above photos are taken from a workshop in Ho Chi Minh city, Vietnam. And full credit for content is given to <a href="http://vnmanpower.com/" target="_blank">Vietnam Manpower Service and Trading Company</a> – No.1 leading welding manpower provider trusted since 2000. <br />
<br />Anonymousnoreply@blogger.com3tag:blogger.com,1999:blog-8596744873665577413.post-13804219678744752372016-01-14T13:50:00.000+07:002016-01-14T13:53:33.350+07:00Newly Invented 'Metal Glue' Has Some Advantage over Welding and Soldering <div style="text-align: justify;">
<b><i>Often, if you want to join 2 metal objects together, you either weld or solder them, subject to how big they are. Both processes, however, involve the application of heat. This can do harm to the items (in case of electronics), even cause explosions (in case of things like gas pipes). That’s why scientists from Northeastern University (Boston) create MesoGlue. This glue can work for just about all kinds of solids - polymers, ceramics, metals, and any composites. And it sets at room temperature. </i></b></div>
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Often, if you want to join 2 metal objects together, you either weld or solder them, subject to how big they are. Both processes, however, involve the application of heat. This can do harm to the items (in case of electronics), even cause explosions (in case of things like gas pipes). That’s why scientists from Northeastern University (Boston) created MesoGlue. This glue can work for just about all kinds of solids - polymers, ceramics, metals, and any composites. And it sets at room temperature. </div>
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You may also like this technology:</div>
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<i><a href="http://vietnamwelder.blogspot.com/2015/10/new-automotive-welding-technology.html" target="_blank">New Automotive Welding Technology Expected to Create Much Stronger Bond</a></i></div>
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<b>What it is and how it works</b></h3>
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Designed by a team whose leader is Prof. Hanchen Huang, this metal glue is made up of microscopic nanorods that have a metallic core. Some of them are coated with indium, and some with gallium. </div>
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First, the facing surfaces of 2 objects-to-be-joined are treated with these nanorods. A layer of the indium-coated rods goes on one surface, while a layer of the gallium-coated rods is applied to the other. In both cases, the rods stand up from the surface, kinda like the bristles of hairbrush. </div>
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As explained by co-inventor Paul Elliott, “when you mash the head of brushes together, all the little bristles push past each other so the two brushes are basically stuck together. The interlacing process is fairly similar to our glue. The bristles are spaced well enough so they can slide or be pressed in between each other.”</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-ZLRzrbglMSw/VpdC9gdbw8I/AAAAAAAACs8/0eulmXtXAns/s1600/%25E2%2580%259CMetal%2Bglue%25E2%2580%259D%2Bhas%2Bsome%2Badvantage%2Bover%2Bwelding%2Band%2Bsoldering%2Bin%2Bsome%2Bapplications1.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Newly-Invented-Metal-Glue-Has-Some-Advantage-over-Welding-and-Soldering-1" border="0" height="266" src="http://1.bp.blogspot.com/-ZLRzrbglMSw/VpdC9gdbw8I/AAAAAAAACs8/0eulmXtXAns/s400/%25E2%2580%259CMetal%2Bglue%25E2%2580%259D%2Bhas%2Bsome%2Badvantage%2Bover%2Bwelding%2Band%2Bsoldering%2Bin%2Bsome%2Bapplications1.png" title="how-metal-glue-creates-bonds" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: justify;"><i>The diagram illustrates how the the comb teeth-like metallic core nanorods interlace and then create a liquid that is subsequently solidified. (Photo credit: Huang/Northeastern University)</i></span></td></tr>
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The coated rods are arranged along a substrate (a). Then the teeth are interlaced (b). When the indium and gallium on the rods come into contact, they form a liquid (c). The metal cores of rods then react with the liquid, making it harden into a cohesive solid. This leads to a bond which reportedly matches the strength of traditional weld or solder. </div>
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Generally, as the nanorods grows on the solid surface through physical vapor deposition processes, they create chemical bonds with the surface. For some solid surfaces, the direct chemical bonds may be weak (when it is ‘non-wetting’), and a buffer layer is used to strengthen the bonding. </div>
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<b>Its outstanding characteristics </b></h3>
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Unlike ones formed by regular polymer based glues, bonds created by MesoGlue are thermally and electrically conductive. They are not adversely impacted by heat; they are highly resistant to moisture/ air leaks; they require little pressure when being created. </div>
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Also, the glue is mechanically strong. As tested by the team, the glue is just broken with about 1500 psi (or 10 MPa) shear load. And it can work for just about all kinds of solids — polymers, ceramics, metals, and any composites.</div>
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<b>Where it is applied </b></h3>
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According to Huang, “the metallic glue has multiple applications, many of them in the electronics industry. As a heat conductor, it may replace the thermal grease currently being used, and as an electrical conductor, it may replace today’s solders. Particular products include solar cells, pipe fittings, and components for computers and mobile devices."</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-SQXD8Dm0Fd0/VpdEojbbm4I/AAAAAAAACtI/QZxnmuyO4Jc/s1600/%25E2%2580%259CMetal%2Bglue%25E2%2580%259D%2Bhas%2Bsome%2Badvantage%2Bover%2Bwelding%2Band%2Bsoldering%2Bin%2Bsome%2Bapplications2.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="266" src="http://1.bp.blogspot.com/-SQXD8Dm0Fd0/VpdEojbbm4I/AAAAAAAACtI/QZxnmuyO4Jc/s400/%25E2%2580%259CMetal%2Bglue%25E2%2580%259D%2Bhas%2Bsome%2Badvantage%2Bover%2Bwelding%2Band%2Bsoldering%2Bin%2Bsome%2Bapplications2.png" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: justify;"><i>Applications of metal glue: a) A CPU on printed circuit board connected to a heat sink. b) A surface mount device attached to a printed circuit board. c) A press fit pipe fitting for environments that welding is dangerous or impossible. d) a glass plate attached to metal with a different thermal expansion coefficient for covering a cavity with hermetic seal. (Photo credit: Huang/Northeastern University)</i></span></td></tr>
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This metal glue is now being commercially developed by a spin-off company. </div>
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Comments around this invention</div>
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<i>xs400</i>: “Better invest in Indium and Gallium, this is going to change the electronics and welding world and many other industries IF it is economically viable, especially for DIYers. Hope it'll be cheap enough for laymen to buy and use.”</div>
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<i>HensleyBeuronGarlington</i>: “That's pretty awesome. Lots of benefits to this method where traditional soldering and welding maybe found lacking for certain applications. To me its like a metal velcro that melts together when linked up.”</div>
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<i>physics314</i>: “Indium is one of the rarest metals on Earth. I wouldn't hold my breath for it to be used as glue.”</div>
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<i>Martin Hone</i>: “The obvious question here is, how does the initial layer get applied to the surface, and how reliable is it ? Ok, two questions, but critical...”</div>
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<i>Douglas Rogers</i>: “This might be applied to fibers to reduce pullout length and create a much stronger composite.”</div>
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(<i>Source: gizmag.com</i>)</div>
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<i>Art Shepherd</i>: “What a boon it would be for automotive applications I would think. Exhaust? Bondo? I wonder how expensive it is to produce and when it might be available to the public?”</div>
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<i>Jack Herer</i>: “what if it gets stuck to their fingers or skin how do they get it off?”</div>
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(<i>Source: upi.com</i>)</div>
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How about your thoughts about this invention?</div>
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Anonymousnoreply@blogger.com6tag:blogger.com,1999:blog-8596744873665577413.post-40766177615451438672016-01-11T09:22:00.001+07:002016-03-15T16:06:36.206+07:00Realistic Splendid Welding Art Made from Scrap Metal <b><i>Another name of miracle is hard work. This artist must work really hard and encounter failures before attaining such amazing successes. How clever he is to bring life into scrap metal, transforming them into incredible lifelike and beautiful sculptures!</i></b><br />
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Below are <b><a href="http://vietnamwelder.blogspot.com/search/label/welding%20art%20ideas" target="_blank">welding artworks</a></b> of JK Brown from rural West Wales. He sure knew a way to turn trash into so splendid sculptures of animals.<br />
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td><a href="http://3.bp.blogspot.com/-dwWTHfjhK3o/VpMRd4ETOjI/AAAAAAAACsU/WppU8w_q_RM/s1600/Native%2Bbutterflies.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-1" border="0" height="425" src="https://3.bp.blogspot.com/-dwWTHfjhK3o/VpMRd4ETOjI/AAAAAAAACsU/WppU8w_q_RM/s640/Native%2Bbutterflies.jpg" title="Native-butterflies" width="640" /></a></td></tr>
<tr><td class="tr-caption"><div style="font-size: 12.8px;">
<span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><i><span style="font-size: small;">Native butterflies. This is his most popular work. They are meticulously painted and shaped like specific species - </span></i></span><span style="color: #141823; font-family: "helvetica" , "arial" , sans-serif; font-size: small;"><span style="line-height: 18px;"><i>Holly Blue and Red Admiral butterflies, etc.</i></span></span></div>
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<span style="color: #141823; font-family: "helvetica" , "arial" , sans-serif; font-size: small;"><span style="line-height: 18px;"><i><br /></i></span></span></div>
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<span style="font-size: small; text-align: start;">Brown also creates lots of other welded creatures, including various insects, birds, horses, frogs, snakes, many of which are inspired by such local fauna as the endangered Adder. While incredibly realistic, the sculptures still retain the weld marks as well as rusty discolorations as to celebrate their scrap origins.</span></div>
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<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-L2Kw0b6ZDI0/VpMO_3AnbZI/AAAAAAAACq8/jw6vt0fD_kw/s1600/Kingfisher.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-2" border="0" height="640" src="https://2.bp.blogspot.com/-L2Kw0b6ZDI0/VpMO_3AnbZI/AAAAAAAACq8/jw6vt0fD_kw/s640/Kingfisher.jpg" title="Kingfisher" width="627" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i><span style="font-size: small;">Kingfisher</span></i></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-P80dqTrUy3M/VpMPTCNZ-BI/AAAAAAAACrE/IEghdgfCRcQ/s1600/Two%2Bholly%2Bblue%2Bbutterflies.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-3" border="0" height="426" src="https://3.bp.blogspot.com/-P80dqTrUy3M/VpMPTCNZ-BI/AAAAAAAACrE/IEghdgfCRcQ/s640/Two%2Bholly%2Bblue%2Bbutterflies.jpg" title="Two-holly-blue-butterflies" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;"><i>Two holly blue butterflies</i></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-NnqnSmrAeHI/VpMPf5hm4oI/AAAAAAAACrM/t3Ayjn6WGcE/s1600/Magpie.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-4" border="0" height="426" src="https://4.bp.blogspot.com/-NnqnSmrAeHI/VpMPf5hm4oI/AAAAAAAACrM/t3Ayjn6WGcE/s640/Magpie.jpg" title="Magpie" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><i><span style="font-size: small;">Magpie</span></i></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-Ydwm_LAw_j8/VpMPrayd5sI/AAAAAAAACrU/oBc5xsCWosw/s1600/Graze.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-5" border="0" height="400" src="https://4.bp.blogspot.com/-Ydwm_LAw_j8/VpMPrayd5sI/AAAAAAAACrU/oBc5xsCWosw/s400/Graze.jpg" title="Graze" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><span style="font-size: small;"><i>Graze</i></span></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-_8S_Ozmc4EQ/VpMP-77B2cI/AAAAAAAACrc/_YzM6a0hKCI/s1600/Grasshoppers.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-6" border="0" height="426" src="https://3.bp.blogspot.com/-_8S_Ozmc4EQ/VpMP-77B2cI/AAAAAAAACrc/_YzM6a0hKCI/s640/Grasshoppers.jpg" title="Grasshoppers" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span aria-live="polite" class="fbPhotosPhotoCaption" data-ft="{"tn":"K"}" id="fbPhotoSnowliftCaption" style="background-color: white; color: #141823; display: inline; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; outline: none; text-align: left; width: auto;" tabindex="0"><span class="hasCaption"><span style="font-size: small;"><i>Grasshoppers</i></span></span></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-Ed9LT6UA7Nc/VpMQKRSL6VI/AAAAAAAACrk/oQQODZqK1Ts/s1600/Pheasant.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-7" border="0" height="640" src="https://4.bp.blogspot.com/-Ed9LT6UA7Nc/VpMQKRSL6VI/AAAAAAAACrk/oQQODZqK1Ts/s640/Pheasant.jpg" title="Pheasant" width="622" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><span style="font-size: small;"><i>Pheasant</i></span></span></td></tr>
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<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-vi_Y-XZYdMo/VpMQbfgzGvI/AAAAAAAACrs/KiWyX4gQ62Q/s1600/Praying%2Bmantis.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-8" border="0" height="640" src="https://1.bp.blogspot.com/-vi_Y-XZYdMo/VpMQbfgzGvI/AAAAAAAACrs/KiWyX4gQ62Q/s640/Praying%2Bmantis.jpg" title="Praying-mantis" width="425" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><i><span style="font-size: small;">Praying mantis</span></i></span></td></tr>
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<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-oNyu-tFTWho/VpMQtfsSC7I/AAAAAAAACr0/MXO4fMu3tBg/s1600/Praying%2Bmantis1.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-9" border="0" height="640" src="https://1.bp.blogspot.com/-oNyu-tFTWho/VpMQtfsSC7I/AAAAAAAACr0/MXO4fMu3tBg/s640/Praying%2Bmantis1.jpg" title="Praying-mantis" width="426" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="color: #141823; font-family: "helvetica" , "arial" , sans-serif; font-size: 12.8px; line-height: 18px; text-align: left;"><span style="font-size: small;"><i>Praying mantis</i></span></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-JfAyTuCw4c0/VpMQ5EjsY9I/AAAAAAAACr8/yXc2v53Aj94/s1600/Adder.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-10" border="0" height="426" src="https://4.bp.blogspot.com/-JfAyTuCw4c0/VpMQ5EjsY9I/AAAAAAAACr8/yXc2v53Aj94/s640/Adder.jpg" title="Adder" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><i><span style="font-size: small;">Adder</span></i></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-mpc6R-wt5aU/VpMRE-HXAPI/AAAAAAAACsE/GrbI38jUNq4/s1600/Hornet.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-11" border="0" height="426" src="https://3.bp.blogspot.com/-mpc6R-wt5aU/VpMRE-HXAPI/AAAAAAAACsE/GrbI38jUNq4/s640/Hornet.jpg" title="Hornet" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><span style="font-size: small;"><i>Hornet</i></span></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-NaL0ply802M/VpMRRCxhhpI/AAAAAAAACsM/42cEDZAwB-A/s1600/Frogs.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-12" border="0" height="640" src="https://1.bp.blogspot.com/-NaL0ply802M/VpMRRCxhhpI/AAAAAAAACsM/42cEDZAwB-A/s640/Frogs.jpg" title="Frogs" width="426" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #141823; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; text-align: left;"><i><span style="font-size: small;">Frogs</span></i></span></td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/--mLov0U1f1g/VpMRqaxccMI/AAAAAAAACsc/RQUfLqU_Ack/s1600/Crow.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Realistic-Splendid-Welding-Art-Made-from-Scrap-Metal-13" border="0" height="436" src="https://1.bp.blogspot.com/--mLov0U1f1g/VpMRqaxccMI/AAAAAAAACsc/RQUfLqU_Ack/s640/Crow.jpg" title="Crow" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span aria-live="polite" class="fbPhotosPhotoCaption" data-ft="{"tn":"K"}" id="fbPhotoSnowliftCaption" style="background-color: white; color: #141823; display: inline; font-family: "helvetica" , "arial" , sans-serif; line-height: 18px; outline: none; text-align: left; width: auto;" tabindex="0"><span class="hasCaption"><i><span style="font-size: small;">Crow</span></i></span></span></td></tr>
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<br />Anonymousnoreply@blogger.com7tag:blogger.com,1999:blog-8596744873665577413.post-2874318224028211132016-01-07T13:20:00.002+07:002016-01-07T13:25:53.439+07:0014 Tig Welding Aluminum Tips for Higher Weld Quality<div style="text-align: justify;">
<b><i>Fantastic advice that will help your welders a lot with Tig welding aluminum</i></b></div>
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<a href="http://3.bp.blogspot.com/-Xgps_YrF8UA/Vo4CJ04JRvI/AAAAAAAACoc/bGv8ztqxgPQ/s1600/14%2BTig%2BWelding%2BAluminum%2BTips%2Bfor%2Bhigher%2Bweld%2Bquality.jpg" imageanchor="1"><img alt="14-Tig-Welding-Aluminum-Tips-for-Higher-Weld-Quality-1" border="0" height="424" src="http://3.bp.blogspot.com/-Xgps_YrF8UA/Vo4CJ04JRvI/AAAAAAAACoc/bGv8ztqxgPQ/s640/14%2BTig%2BWelding%2BAluminum%2BTips%2Bfor%2Bhigher%2Bweld%2Bquality.jpg" title="14-Tig-Welding-Aluminum-Tips-for-Higher-Weld-Quality" width="640" /></a></div>
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Related reading:<br />
<a href="http://vietnamwelder.blogspot.com/2015/08/tig-welding-aluminum-tips-that-will.html" target="_blank"><i>Tig Welding Aluminum Tips That Will Help You Tremendously</i></a><br />
<a href="http://vietnamwelder.blogspot.com/2015/11/tig-welding-tips.html" target="_blank"><i>21 Tig Welding Tips That You Need to Keep in Mind</i></a><br />
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Clean the aluminum off using a wire brush or a scotch brite pad. Use a brand-new brush. And for the best results, use a stainless wire brush. Don’t use the stainless steel brush on anything but aluminum. The same goes for the scotch brite pad, not used on anything but the aluminum. A contaminated brush can make an aluminum weld considerably weaker.</div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Basically, there are 3 brushes – one for steel, one for stainless and the other is for aluminum. Never ever mix them up.</div>
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Get as much practice as possible. Aluminum, indeed, takes a while to get a feel for.</div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span>If you suspend your plates off the table, it sure will make it easier to get full penetration. Try putting blocks underneath your plates, leaving one inch of the plate hanging over on each side of the joint.</div>
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While suspending the plates off the table does help with full penetration, it also makes it much easier to blow holes. Practically, you really need have the skill to manipulate the metal well enough to avert from blowing a hole in your work-piece and generate the full penetration condition at the same time.</div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span>Aluminum requires lots of heat to weld. For example, 1/8” aluminum open corner joint asks for a machine setting of around 130 amps using AC current. The pedal should be ¾ of the way down during your welding. Zero to ½ pedal will enable you to light the arc without melting material and trail off the arc gently. Three quarter to wide open allows the operator to have amperage in reserve.</div>
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6.<span class="Apple-tab-span" style="white-space: pre;"> </span>When using AC current on aluminum, the material will get shiny as it’s ready to accept a filler rod. If the material isn’t shiny, it won’t accept filler metal. That’s why just watch the area closely underneath the tungsten rod until you see it become shine.</div>
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For exception, DC welding aluminum with the helium shield pool doesn’t change color; it sinks.</div>
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7.<span class="Apple-tab-span" style="white-space: pre;"> </span>When you add your rod to an aluminum weld, the pool will rise. Take this into consideration when you position the tungsten over the part; otherwise, your weld will rise up and contaminate the tungsten electrode.</div>
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8.<span class="Apple-tab-span" style="white-space: pre;"> </span>When welding aluminum, if you do not see reinforcement above your plate, one of below two things is occurring:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>You are adding in insufficient rod</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The material is gotten too hot, and your weld has sunk. This is called burn-through.</div>
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9.<span class="Apple-tab-span" style="white-space: pre;"> </span>Rod to torch angle is very important. Heat will reflect off your part and melt the rod if you aren’t aware of it. Just slide rod in under heat. Rod needs pushing into the pool, but not drawing in by the arc heat; or else, you won’t achieve uniformity. This applies to any process that you have to manually feed in a rod with your hand. If it can be avoided, rod and torch angle should never be the same.</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-aDJChWXlhbs/Vo4DPVyb85I/AAAAAAAACoo/HYLXvuwxBfs/s1600/Rod%2Bto%2Btorch%2Bangle%2Bis%2Bcritical.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="14-Tig-Welding-Aluminum-Tips-for-Higher-Weld-Quality-2" border="0" height="496" src="http://3.bp.blogspot.com/-aDJChWXlhbs/Vo4DPVyb85I/AAAAAAAACoo/HYLXvuwxBfs/s640/Rod%2Bto%2Btorch%2Bangle%2Bis%2Bcritical.jpg" title="Rod-to-torch-angle-is-critical" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: start;"><i>Rod to torch angle is critical.</i></span></td></tr>
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10.<span class="Apple-tab-span" style="white-space: pre;"> </span>Keep the arc length as short as possible. The arc length is the distance between tungsten and work-piece. The more stable your hand is, the closer you can get. Different arc lengths can be applied for different materials.</div>
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11.<span class="Apple-tab-span" style="white-space: pre;"> </span>Tungsten profiles would change arc characteristics:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Long taper -> Heat is concentrated in small area.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Decreasing taper -> Arc will spread out more.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Round -> Heat will flare out (for AC current on aluminum).</div>
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12.<span class="Apple-tab-span" style="white-space: pre;"> </span> The smaller the rod is, the harder it is to feed. Start welding with larger rods (3/32” or 1/8”, etc.)</div>
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13.<span class="Apple-tab-span" style="white-space: pre;"> </span>Some alloys of aluminum do not weld or bend. Know what you’re welding. Do your homework on aluminum alloys by searching information on the Internet or the like. 2024 and 7075 aren’t weldable. 5052, 3003, 1100 are known as bendable soft alloys. 6061, 7075 will bend, but not in the tight radius. Just research out your materials.</div>
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Nice read about a new automotive welding technology that creates strong bonds between metals that are formerly ‘un-weldable’:<br />
<a href="http://vietnamwelder.blogspot.com/2015/10/new-automotive-welding-technology.html" target="_blank"><i>New Automotive Welding Technology Expected to Create Much Stronger Bond</i></a><br />
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14.<span class="Apple-tab-span" style="white-space: pre;"> </span>When welding on aluminum casting, bear in mind those things:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Grind off sand from the rough castings. There are available grinding wheels for 4- 1/2” and larger grinders specified for grinding aluminum.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Dirty or oily castings need special care. If possible, you can plasma cut out a crack. This would clean out the oil in the crack. Drill holes at the ends of cracks; otherwise, they will keep happening after the repair is made.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Clean the surface using alcohol or similar cleaner. Carefully heat the area with an oxy-acetylene torch for cooking out the oil. Go over the crack with a Tig torch with low heat. Use a small tungsten electrode. Don’t add welding rod. Every time you go over the aluminum, it should get cleaner. You will see the black discolor aluminum at first. Just weld, grind, weld, grind. After all, the aluminum will become shiny, then you can weld with the rod and larger tungsten.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>You can utilize sanding discs on aluminum for metal finish. Spray WD40 on the disc and the part to prevent it from loading up. </div>
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<i>Above is helpful advice collected by <a href="http://vnmanpower.com/" target="_blank">Vietnam Manpower Service and Trading Company </a>(VMST) - one welding manpower supplier from Vietnam. Do you have any tips to share? We are happy to hear them!</i></div>
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Anonymousnoreply@blogger.com12tag:blogger.com,1999:blog-8596744873665577413.post-573481194262813632015-12-31T15:34:00.000+07:002015-12-31T16:06:01.581+07:00Do Your People Really 'Know Welding'? Ask These Questions to Check It!<div style="text-align: justify;">
<b><i>Having people who 'know welding' is often considered adequate or good welding staffing. But what are criteria for what is called 'know welding'? Below are 7 important questions that help gauge whether your firm’s welding science expertise is adequate.</i></b><br />
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<a href="http://1.bp.blogspot.com/-ckjWJ0NI8sA/VoTnoqsZ3mI/AAAAAAAACn8/jvTALMvlvAM/s1600/Do%2Byou%2Bpeople%2Breally%2B%25E2%2580%2598know%2Bwelding%25E2%2580%2599%2BAsk%2Bthese%2Bquestions%2Bto%2Bcheck%2Bit.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Do-Your-People-Really-Know-Welding-Ask-These-Questions-to-Check-It" border="0" height="480" src="http://1.bp.blogspot.com/-ckjWJ0NI8sA/VoTnoqsZ3mI/AAAAAAAACn8/jvTALMvlvAM/s640/Do%2Byou%2Bpeople%2Breally%2B%25E2%2580%2598know%2Bwelding%25E2%2580%2599%2BAsk%2Bthese%2Bquestions%2Bto%2Bcheck%2Bit.jpg" title="Do-Your-People-Really-Know-Welding-Ask-These-Questions-to-Check-It" width="640" /></a></div>
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Having people who ‘know welding’ is often considered adequate or good welding staffing. Essentially, if welding is occurring and the products are shipping, managers that know nothing about welding sciences will just assume that they’re adequately staffed from growth. But is that really true in your firm, or is it just a common and expensive assumption? Below are 7 important questions that help gauge whether your firm’s welding science expertise is adequate:</div>
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span>How much money is being lost in welding scrap?</div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span>How many hours are being spent in welding repairs?</div>
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span>How many hours are being spent in making welding adjustments to automation equipment?</div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span>What is your internal <b><a href="http://vietnamwelder.blogspot.com/search/label/defects%20of%20welding" target="_blank">weld defect</a></b> rate on products, and how much have you reduced the repair rate in the last year?</div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span>What is your external weld defect rate shipped to your customers? And how much have you reduced that rate over the last 3 years?</div>
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6.<span class="Apple-tab-span" style="white-space: pre;"> </span>How many times a year does employees have to repair, reprogram, etc. welding automation that ‘crashed’? </div>
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7.<span class="Apple-tab-span" style="white-space: pre;"> </span>What are your main welding operation bottlenecks? And how much have you decreased their cycle time in the last 3 years?</div>
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Of course, this is not the full list. But if your people’s expertise is really good and adequately supported for your profitability, they can answers all these questions in a day or less. Questions 4, 5, 7 all refer to the continuous improvement environment of your facilities in welding operations; if you don’t measure, it is a forfeit. If you do, but you have no continuous improvement, it is because your people lack welding science expertise, or the like. </div>
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Welding is never a simple process; it needs trained welders, trained welding engineers, targeted scientific research. If you are looking abroad for welding manpower of skills and expertise you need, <b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">Vietnam Manpower Service and Trading Joint Stock Company (VMST)</a></b> - a trusted welding manpower supplier from Vietnam, is one of a choice. </div>
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About VMST contact:</div>
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Ms. Lana – General Director</div>
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WhatsApp/ Viber/ Mobile No.: +84 9495 94116 </div>
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Office No.: (+84) 473 033 699</div>
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Skype: vnhumanresources or "vietnamhr4"</div>
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Email: lana@vnmanpower.com</div>
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Website: http://vnmanpower.com/</div>
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Also, Happy New Year 2016! Cheers to your 2015 successes and here is another wonderful year of accomplishments in people hiring, productivity and profits!</div>
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Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-8596744873665577413.post-23406986143084246932015-12-25T11:17:00.002+07:002016-03-31T11:04:48.187+07:00Welding art projects: It’s never too late to give Christmas gifts!<div style="text-align: justify;">
<b><i>Handmade Christmas gifts are just super fantastic, as you get the opportunity to give your beloved ones things made out of your hard work and creativity. Below are welding art projects for your Christmas gifting. These gifts are sure to be cherished and appreciated for years to come. </i></b></div>
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Christmas finally comes. Have you given gifts to your loved ones? Lots of you may already do it. But for someone who for some reason gives late gifts, these are nice <b><a href="http://vietnamwelder.blogspot.com/search/label/welding%20art%20projects" target="_blank">welding art projects</a></b> from versatile, found materials for Christmas gifting. It is never too late to send a gift, indeed. And just make it heart-felt. </div>
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And now, Happy Holiday Season and Happy New Year!</div>
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<b>Bike chain keychain welding project</b></h3>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-zv2sC_7C7X4/VnzANvb2eJI/AAAAAAAACmM/g5KbPQFhlTc/s1600/welded%2Bkey%2Bchain%2Bin%2Bheart%2Bshape.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Welding-art-projects-It-is-never-too-late-to-give-Christmas-gifts-1" border="0" height="640" src="https://2.bp.blogspot.com/-zv2sC_7C7X4/VnzANvb2eJI/AAAAAAAACmM/g5KbPQFhlTc/s640/welded%2Bkey%2Bchain%2Bin%2Bheart%2Bshape.jpg" title="Welded-key-chain-in-heart-shape" width="480" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i><span style="font-size: small;">Welded key chain in heart shape</span></i></td></tr>
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Bike chains are a versatile material that can be made into numerous useful, attractive gifts. You can shape them into a key chain in the shape of heart, monogram letter, etc. Be sure to create a hook to attach this key chain portion to, which can be easily and inexpensively found at any craft store. </div>
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<b> Washer sculpture welding project</b></h3>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-yC_EB2YR4ao/VnzAsDoigvI/AAAAAAAACmU/MVSLba55YpQ/s1600/Washer%2Bsculpture%2Bwelding%2Bproject.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Welding-art-projects-It-is-never-too-late-to-give-Christmas-gifts-2" border="0" height="640" src="https://1.bp.blogspot.com/-yC_EB2YR4ao/VnzAsDoigvI/AAAAAAAACmU/MVSLba55YpQ/s640/Washer%2Bsculpture%2Bwelding%2Bproject.png" title="welded-paper-weight" width="572" /></a></td></tr>
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Washers are another found material with which you can weld just about any shape or sculpture. Keep your recipient in mind, and create a small figure using bolts, nails and washers that will make a nice desk art or useful paper weight. Attach it to a flat, strong sheet of metal to ensure it stays stable.</div>
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<b>Silverware art welding projects</b></h3>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-6_c3nUN0A1Y/VnzBWw-THvI/AAAAAAAACmc/6RusbOnngKw/s1600/Silverware%2Bart%2Bwelding%2Bprojects.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Welding-art-projects-It-is-never-too-late-to-give-Christmas-gifts-3" border="0" height="640" src="https://1.bp.blogspot.com/-6_c3nUN0A1Y/VnzBWw-THvI/AAAAAAAACmc/6RusbOnngKw/s640/Silverware%2Bart%2Bwelding%2Bprojects.jpg" title="Fork-salt-and-pepper-shakers-holder-welded-from-silverware" width="366" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small; text-align: justify;"><i>Fork salt and pepper shakers holder </i></span></td></tr>
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Silverware is a versatile material. It can be fabricated into beautiful, practical pieces for your Christmas gifting. Forks and knives, spoons etc. can be welded into just about anything. To create a surprising gift idea, just bend and weld forks to make an original iPhone, business card holder, fork salt and pepper shakers holder, etc. that definitely makes the recipient’s day. </div>
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<b>Nail dandelion welding project</b></h3>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-_6gTT5kva7A/VnzDDwk4EkI/AAAAAAAACmo/90wtnIPhvb4/s1600/Nail%2Bdandelion%2Bwelding%2Bproject.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Welding-art-projects-It-is-never-too-late-to-give-Christmas-gifts-4" border="0" height="640" src="https://3.bp.blogspot.com/-_6gTT5kva7A/VnzDDwk4EkI/AAAAAAAACmo/90wtnIPhvb4/s640/Nail%2Bdandelion%2Bwelding%2Bproject.png" title="Welded-flowers-from-nails" width="614" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i><span style="font-size: small;">Welded flowers from nails</span></i></td></tr>
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Rusted, scrap nails can be turned into chic artwork like flowers, etc. Welded flowers that never die can be showcased from the garden to coffee table, and everywhere in between. Just connect the nails at the tips, and either attach to a metal rod that you can stick in the ground or leave rusted and raw. They can be left rustic or painted with bright enamel colors. </div>
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Don’t hesitate to share your welding project ideas for this winter in the comment box below. Again, Happy Holidays from <b><a href="http://vnmanpower.com/" target="_blank">VMST</a> </b>(welder staffing company from Vietnam)!</div>
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Anonymousnoreply@blogger.com1tag:blogger.com,1999:blog-8596744873665577413.post-87228216079032409322015-12-18T15:57:00.002+07:002015-12-18T16:26:32.788+07:00Ultimate Guide on Welding Slang Words<div style="text-align: justify;">
<b><i>It seems like that there has not been a nice list of slang words used in the field devoted to welding. That’s why I am posting this in an effort to help you compile a list of welding slang helpful enough and complete enough. </i></b></div>
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In the welding world, newcomers often find themselves lost in the common phrases and slang words thrown around by their fellow workers. Here is the ultimate guide on <b>welding slang</b> in the workforce. You will find the categories in these subjects: People; Equipment or things; Situations, Phrases. And terms are arranged alphabetically.</div>
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<b><span style="color: #b45f06;">People</span></b></h3>
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Bugger</b>: Welder’s helper, cleaning up and preparing weld in advance. Modern day welder’s helpers don’t like being referred to as being buggers. </div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Drinking hand</b>: A welder that drinks alcohol in excess. Welders are never called a wino, but a drinking hand. And being a drinking hand isn’t indeed all that bad a thing to be.<br />
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Golden arm</b>: A really good welder (person with excellent technique and end results)</div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Golden goose</b>: Internal welder</div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Green/ Green horn/ Rookie</b>: Any <b><a href="http://vietnamwelder.blogspot.com/search/label/novice%20welders" target="_blank">welder new to the trade</a></b></div>
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6.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Grunt</b>: Helper or laborer</div>
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7.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Meat hand</b>: Derived from the term ‘bead hand’. A root pass welder on the pipeline job. Often, a good welder who can run slick root passes (stringer beads) in the X-ray pipelines in production mode. </div>
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8.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Pipe fighter</b>: Pipe fitter</div>
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9.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Potato face</b>: Welder with flash burned eyes<br />
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In case you like reading:<br />
<a href="http://vietnamwelder.blogspot.com/2015/10/avoid-welding-arc-flash.html" target="_blank"><i>Effectively avoid welding arc flash only if you understand those things</i></a><br />
<a href="http://vietnamwelder.blogspot.com/search/label/hazards%20of%20welding" target="_blank"><i>Welding Health Hazards and Prevention That Your Welders Must Know About </i></a><br />
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10.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>ROMF</b>: Welder whose services are not necessary any more. </div>
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11.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Shield arc’er</b>: Person hired for SMAW welding (SMAW welder)</div>
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12.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Stick welder/ Stick rider</b>: One capable of doing SMAW (Shielded Metal Arc Welding)</div>
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13.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Warm</b>: A new person on pipeline</div>
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14.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Zoro</b>: Welder trying to un-stick the SMAW electrode</div>
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<b><span style="color: #b45f06;">Equipment or Things</span></b></h3>
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Alligator cut</b>: A torch cut done so badly that the steel looks like it had been chewed through by alligator. </div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Amperage</b>: Heat, temp</div>
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Argon</b>: Term used for any shielding gas no matter what actual composition</div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Bang board</b>: Temporary power outlets</div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Bubble gum</b>: Weld with lack of fusion and/ or porosity, weld with lumps and bumps.</div>
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7.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Blue room</b>: Portable toilet</div>
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8.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Buckshot/ BB’s/ Dingle berry</b>: Welding spatter</div>
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9.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Bugholes/ Pinholes/ Holes</b>: <b><a href="http://vietnamwelder.blogspot.com/search/label/porosity%20in%20welding" target="_blank">Porosity in welding</a></b></div>
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10.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Burn rods</b>: Weld with a stick electrode</div>
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11.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Cap</b>: Final weld bead in the weld joint. It may be completed in the form of stringer bead or by weaving motion back and forth.</div>
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12.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Cellulosic</b>: SMAW electrodes that have organic material – for example, paper, as the major component. These electrodes are inclined to have deep penetrating capabilities. </div>
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13.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Cheater bead</b>: Extra pass running over the top of weld beads to better appearance or hide defects<br />
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Defects of welding and their prevention:<br />
<i><a href="http://vietnamwelder.blogspot.com/search/label/pipe%20welding%20mistakes%20and%20preventions" target="_blank">13 Most Common Pipe Welding Mistakes and Best Preventions </a></i><br />
<a href="http://vietnamwelder.blogspot.com/search/label/flux%20core%20welding%20tips%20and%20tricks" target="_blank"><i>6 Useful Tips for Preventing Flux Core Welding Problems </i></a><br />
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14.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Chicken scratch</b>: Arc strikes outside of the weld area. </div>
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15.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Cold lap/ Cold roll</b>: A defect that occurs when there is insufficient penetration on one leg of the weld. Also, called LOF (lack of fusion, incomplete fusion), it is most often caused by too slow travel speeds or too wide weaves. It also can eventuate from lack of heat input, which hinders the weld and base metal from fussing together.</div>
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16.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Dogleg</b>: Two pieces of long-run pipe welded together crooked</div>
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17.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Electrode</b>: Wire, rod</div>
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18.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Fingernail</b>: The shape of SMAW electrode when the flux burns off the end. </div>
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19.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Fisheye</b>: The puddle shape while welding. Sometimes, this word is also used to describe the shape of crater at the end of the weld.</div>
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20.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Fizzle</b>: Welding or carbon arc sparks</div>
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21.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Gorilla weld</b>: Large ugly weld with lots of <b><a href="http://vietnamwelder.blogspot.com/2015/08/10-powerful-ways-to-avoid-lack-of.html" target="_blank">lack of fusion</a></b></div>
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22.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Heli-arc</b>: Old trade name for GTAW process that is also called ‘Tig’</div>
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23.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Hot start</b>: Function used on several SMAW power sources to simplify arc starting when using hard-to-start electrodes. It works by adding more current to help form the arc. </div>
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24.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Keyhole</b>: The hole shape that is formed while welding the open-root joint. It allows for good penetration and connection in the completed weld.</div>
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25.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Lumber rod</b>: Very special SMAW electrode that is used to weld pallets or wood together</div>
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26.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Pig tail</b>: Electrode holder on the back of GTAW torch</div>
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27.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Promotion pads</b>: Knee pads</div>
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28.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Quiver</b>: SMAW electrode bag</div>
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29.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Reach rod</b>: Internal machine rod</div>
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30.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Rig</b>: Truck or trailer for hauling a welder’s equipment</div>
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31.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Sizzle</b>: Sound that GMAW makes when it is properly set</div>
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32.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Stiff</b>: Arc that give lots of drive into the weld joint. It is often connected with increased spatter.</div>
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33.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Stinger</b>: Stick electrode holder</div>
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34.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Soft</b>: Arc with less drive (dig) and potentially less penetration into weld joint</div>
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35.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Tombstone welder</b>: Common AC/DC or AC stick welder that looks like a tombstone in that its dials are on the front and it stands upright</div>
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36.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Turd bucket</b>: Lunch box</div>
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37.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Wagon tracks/ Worm tracking</b>: This weld defect results from hydrogen trapped by the freezing slag. The defect, commonly as the consequence of excessive voltage, appears when a bubble flows into weld puddle and evaporates into the atmosphere.</div>
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38.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Wallmart weld</b>: A weld with significant undercut</div>
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39.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Wash</b>: Moderate to large weave</div>
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40.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Weed burner</b>: Propane torch that is usually just used for pre/post heat</div>
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41. <b>Whip</b>: The ‘gun’ on a portable Mig (GMAW-FCAW) box</div>
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41.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Wowie</b>: Any weld or material with one bend at least that isn’t supposed to be there</div>
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<b><span style="color: #b45f06;">Situations</span></b></h3>
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>AB (Arc Burn)</b>: Striking of an arc anywhere outside welding bevel. This may result in the ROMF condition.</div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Dig</b>: It is also called arc control or arc force. It is the ability to adjust the drive of SMAW electrode to get more or less penetration into the weld joint. </div>
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Drag-up</b>: Preemptively removing welder services before becoming ROMF</div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>GP</b>: Small to large holes in weld metal. Small GP on the cap may be ignored by welder or covered by putting mud on the weld strategically. This repair technique is also helpful for AB but may result in the ROMF condition. </div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>IP</b>: Lack of penetration with the root pass. More than 1 inch on mainline welds and 2 inches on tie ins can is considered to be a defect. This may result in the ROMF condition.</div>
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6.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Making popcorn</b>: Power source (Machine) not set correctly (on Mig especially)</div>
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<a href="http://4.bp.blogspot.com/-dg9uAnDS_3c/VnPIIcUGBbI/AAAAAAAACkc/tAB2kbFy9XU/s1600/popcorn.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Ultimate-Guide-on-Welding-Slang-Words-2" border="0" height="360" src="http://4.bp.blogspot.com/-dg9uAnDS_3c/VnPIIcUGBbI/AAAAAAAACkc/tAB2kbFy9XU/s640/popcorn.jpg" title="making-popcorn" width="640" /></a></div>
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7.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Pay day</b>: Friday. Payment of services to welders for work done and living expenses. Failure by contractor can induce wobble or drag up. </div>
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8.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Poor fitup</b>: Gaps in some spots whilst other spots are tight</div>
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9.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Stringer bead</b>: Just a simple weld made without using a whip action – just like decorating a cake</div>
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10.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Unloading</b>: The way a SMAW electrode, commonly an AWS 7018 classification, burns off whilst welding. It occurs as a large amount of SMAW electrode releases across the arc, often inducing additional spatter. </div>
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11.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Walking papers/ Bounced/ Snake eyes</b>: Getting fired or laid off</div>
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12.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Wetting-out</b>: Ability of a weld puddle to flow evenly, enabling both sides of the weld to merge seamlessly with the base material</div>
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13.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Wobble</b>: Slow-down of work due to either inattention to the contractor to see welders are regularly paid or cheating welders out of .10/ hour. Also, this can be caused by the contractor requiring welders to account for all the welding rods issued to the welders.<br />
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You may also be interested in:<br />
<a href="http://vietnamwelder.blogspot.com/2015/06/7-easy-ways-of-motivating-your-welders.html" target="_blank"><i>7 Easy Ways of Motivating Your Welders</i></a><br />
<a href="http://vietnamwelder.blogspot.com/2015/07/how-to-retain-your-experienced-welders.html" target="_blank"><i>How to Retain Your Experienced Welders</i></a><br />
<a href="http://vietnamwelder.blogspot.com/2015/07/6-sure-fire-ways-of-motivating-your-unskilled-welders.html" target="_blank"><i>6 Sure-Fire Ways of Motivating Your Unskilled Welders</i></a></div>
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<b><span style="color: #b45f06;">Phrases</span></b></h3>
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Clamp it Jed</b>: Put a clamp there</div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Dime wide and Nickel high</b>: Width and height of the final pass on pipeline weld using the SMAW process. Utilizing these precision inspection tools is based on the idea that welders and inspectors are motivated by money. </div>
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>$10 on the truck, $20 on the arm, and they furnish</b>: This statement means a non-union job (probably pipeline) and a rig job. The rig would receive $10 an hour and the welder would get $20. And they furnish – rods, gas, bottles, water and ice. </div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Put me on Maxine and 100</b>: Put both knobs on the engine-driven machine all the way up</div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span><b>Shoulder to the Holder</b>: Welder who uses more brawn than brain for work </div>
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6. <b>Skate r in there</b>: Smooth way to add one welding pass on another pass. Like when worm grinds the root pass to thin.<br />
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<a href="http://1.bp.blogspot.com/-8FNHI4CA_HA/VnPKEQu240I/AAAAAAAACko/AV75aueD5bA/s1600/weld%2Bskater.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Ultimate-Guide-on-Welding-Slang-Words-3" border="0" height="408" src="http://1.bp.blogspot.com/-8FNHI4CA_HA/VnPKEQu240I/AAAAAAAACko/AV75aueD5bA/s640/weld%2Bskater.jpg" title="Weld-Skater" width="640" /></a></div>
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7. <b>W.A.S.P</b>: Welders Against Stupid Pipefitters</div>
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Anonymousnoreply@blogger.com2tag:blogger.com,1999:blog-8596744873665577413.post-40807005502990304322015-12-11T14:46:00.000+07:002015-12-11T14:50:40.213+07:00Admire These 5 Welding Wonders of the Modern World<div style="text-align: justify;">
<b><i>The welding trade has helped countless industries thrive, even made the impossible possible. Let’s take a tour of some of the world’s most famous welding wonders to admire them, learn more about huge impacts of welding on the world.</i></b><br />
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You may also like reading:<br />
<a href="http://vietnamwelder.blogspot.com/2015/10/second-welded-singing-ringing-tree-in-the-world.html" target="_blank"><i>There will be the second welded Singing Ringing Tree in the world</i></a><br />
<a href="http://vietnamwelder.blogspot.com/2015/08/a-welder-dedicates-whole-year-to-making.html" target="_blank"><i>A Father Dedicates Whole Year to Welding Astonishingly Giant Transformer for His Son</i></a><br />
<a href="http://vietnamwelder.blogspot.com/2015/09/original-welding-art-by-young-welder.html" target="_blank"><i>Original Welding Art by a Very Young Welder from Chicago</i></a></div>
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Anyone in the welding industry has reason to brag about their professions because the big world has been made possible thanks to welding – one of the most essential trades. For thousands of years, unlimited industries have counted on advances in the welding field. Let’s take a tour of some of the world’s most famous <b>welding wonders </b>to admire them, to be more proud of your job, to boost the morale of your co-workers, your employees, and of course to enhance your knowledge about this amazing field. </div>
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<b>1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Trans-Alaska Pipeline</b></h3>
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<a href="http://4.bp.blogspot.com/-Hu9qCWQng2U/Vmp7Y59Xt_I/AAAAAAAACik/XOAizpLn398/s1600/Trans-Alaska%2BPipeline.gif" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Admire-These-5-Welding-Wonders-of-the-Modern-World-1" border="0" height="352" src="http://4.bp.blogspot.com/-Hu9qCWQng2U/Vmp7Y59Xt_I/AAAAAAAACik/XOAizpLn398/s640/Trans-Alaska%2BPipeline.gif" title="Trans-Alaska-Pipeline" width="640" /></a></div>
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The Trans-Alaska pipelines are commonly known as one of the world’s historic welding projects. Thousands of welders braved the Alaska’s wilderness terrain and cruel weather for 3 years to weld the pipeline that is 49 inches in diameter. Since its completion, over seventeen billion oil barrels have flowed from the Prudhoe Bay oil field in North Alaska to Valdez Bay. </div>
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<b>2.<span class="Apple-tab-span" style="white-space: pre;"> </span>The Vertical Assembly Center</b></h3>
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<a href="http://2.bp.blogspot.com/-ZFBMwyrl3gs/Vmp7ylEoxSI/AAAAAAAACio/mpy4UEYR2ho/s1600/The%2BVertical%2BAssembly%2BCenter.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Admire-These-5-Welding-Wonders-of-the-Modern-World-2" border="0" height="426" src="http://2.bp.blogspot.com/-ZFBMwyrl3gs/Vmp7ylEoxSI/AAAAAAAACio/mpy4UEYR2ho/s640/The%2BVertical%2BAssembly%2BCenter.jpg" title="The-Vertical-Assembly-Center" width="640" /></a></div>
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For over 50 years, NASA has heavily relied on the welding trade to make the impossible possible. Debuting in 12th September, 2014, the Vertical Assembly Center became <b><a href="http://vietnamwelder.blogspot.com/search/label/Welding%20in%20space" target="_blank">the globe’s largest welding tool</a></b>. It is used to bring together the Space Launch System – the largest and most powerful rocket ever designed by mankind. It will help take humans not just to the moon but to other destinations like Mars and asteroids.</div>
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<b>3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Cloud Gate</b></h3>
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<a href="http://4.bp.blogspot.com/-keSvFs0vH_M/Vmp9A1hrwSI/AAAAAAAACiw/o15nfPDPJzA/s1600/Cloud%2BGate.JPG" imageanchor="1"><img alt="Admire-These-5-Welding-Wonders-of-the-Modern-World-3" border="0" height="420" src="http://4.bp.blogspot.com/-keSvFs0vH_M/Vmp9A1hrwSI/AAAAAAAACiw/o15nfPDPJzA/s640/Cloud%2BGate.JPG" title="Cloud-Gate" width="640" /></a></div>
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Standing 33 feet high and 66 feet long, Cloud Gates has been praised as one of Chicago’s most iconic structures. Because it takes after the tiny legumes, people often call it ‘the bean’. This sculpture was designed by Anish Kapoor - a British artist, but it was brought to life thanks to the diligent work of over 100 metal fabricators, technicians, engineers and welders. The designer was inspired by liquid mercury when coming up with the original structure. This reasoned why most of the work went on inside the structure that was created by a smooth series of polished, steel plates. Some of the largest plates weighted up to 1,500 pounds. For the perfect appearance, the curved plates were flux-core stitch-welded to the rib –system, a task that utilized a mammoth amount of welding supplies and the hard work of welding team. </div>
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<b>4.<span class="Apple-tab-span" style="white-space: pre;"> </span>Disney’s Spaceship Earth</b></h3>
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<a href="http://2.bp.blogspot.com/-erKnosgLWaw/Vmp9kMz2ysI/AAAAAAAACi0/2Z_jMG6pV54/s1600/Disney%25E2%2580%2599s%2BSpaceship%2BEarth.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Admire-These-5-Welding-Wonders-of-the-Modern-World-4" border="0" height="434" src="http://2.bp.blogspot.com/-erKnosgLWaw/Vmp9kMz2ysI/AAAAAAAACi0/2Z_jMG6pV54/s640/Disney%25E2%2580%2599s%2BSpaceship%2BEarth.jpg" title="Disney-Spaceship-Earth" width="640" /></a></div>
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“Like a grand and miraculous spaceship, our planet has sailed through the universe of time. And for a </div>
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brief moment, we have been among its many passengers.” That was the opening line for the almost 32-year-old attraction at Disney’s Epcot Center – Spaceship Earth. It stands as one of most iconic structures ever built by Disney Imagineering. The main purpose of this Spaceship Earth was to ‘bring the world together through technology’, and that goal was certainly accomplished throughout the construction process. To create the structure, welding was a key task, most of which was implemented off site using industrial tools. That way helped improve quality control and provide better working conditions. </div>
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<b>5.<span class="Apple-tab-span" style="white-space: pre;"> </span>Space Shuttle External Tank</b></h3>
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<a href="http://4.bp.blogspot.com/-VBEPpJmFaCY/Vmp-ISA75WI/AAAAAAAACi8/65qZ26qHSRo/s1600/Space%2BShuttle%2BExternal%2BTank.gif" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Admire-These-5-Welding-Wonders-of-the-Modern-World-5" border="0" height="426" src="http://4.bp.blogspot.com/-VBEPpJmFaCY/Vmp-ISA75WI/AAAAAAAACi8/65qZ26qHSRo/s640/Space%2BShuttle%2BExternal%2BTank.gif" title="Space-Shuttle-External-Tank" width="640" /></a></div>
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The Space Shuttle, for years, stood as the beacon of U.S spaceflight. Between 1981 and 2011, as many as 135 missions were launched from Kennedy Space Center (Florida). Thanks to the Space Shuttle, a number of satellites and interplanetary probes were launched (inclusive of the Hubble Space Telescope), significant science experiments were carried out in orbit, and the International Space Station was developed. All of this was made possible thanks to welding trade that brought the Shuttle external tank into life. The external tank was designed by Martin Marietta Corporation (Maryland, U.S), and manufactured and assembled by Lockheed Martin Space Systems Company (Colorado, U.S) at NASA’s Michoud Assembly Facility (New Orleans, Louisian). It was the largest and heaviest part of the Space Shuttle. The original tank built until 1983 weighted around 76,000 pounds. The weight of the tank was reduced with the construction of Lightweight Tank. It trimmed around 10,000 pounds from the tank preceding it. New welding processes made the Lightweight Tank production more cost efficient. In 1984, the Marshall Spaceflight Center used Variable Polarity Plasma Arc welding as the method of the tank construction. After years of research, Reynolds Aluminum, Lockheed Martin and the labs at Marshall Space Flight Center were able to develop a new alloy called Aluminum Lithium Al-Li 2195 – which lowered the weight of the External Tank by another 7,500 pounds. While repair welds became harder to make and production costs increased on the tank, NASA started researching alternative <b><a href="http://vietnamwelder.blogspot.com/search/?q=welding+technique" target="_blank">welding techniques</a></b>. Eventually, project managers chose the friction stir process that created a stronger joint than the fusion arc welding employed in the earlier Lightweight Tank. </div>
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Can you think of any more iconic machines or structures that have been made possible by welding? We - <b><a href="http://vnmanpower.com/" target="_blank">VMST</a></b>,<b> </b>would love to hear from you in the comments below. </div>
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Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-8596744873665577413.post-82844351316035907932015-12-03T15:05:00.000+07:002015-12-03T15:08:13.911+07:00Common Mig Welding Mistakes – Avoidance and Quality<div style="text-align: justify;">
<b><i>There is a lot that can go wrong with Mig welding. The common mistakes associated with this type of welding and how to get it right are all mentioned below. If those mistakes are taken care of, Mig welding will be easy to do. </i></b></div>
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Related posts:</div>
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<a href="http://vietnamwelder.blogspot.com/2015/07/8-useful-tips-for-mig-welding.html" target="_blank"><i>8 Useful Tips for Mig Welding</i></a></div>
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<a href="http://vietnamwelder.blogspot.com/2015/08/9-helpful-mig-welding-tips-for-brand-new-welders-from-pros.html" target="_blank"><i>9 Helpful Mig Welding Tips for Brand-New Welders from Pros</i></a></div>
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<a href="http://1.bp.blogspot.com/-zNYnaQrDm8Q/Vl_routUE7I/AAAAAAAACf4/gsdYLTwHleI/s1600/Common%2BMig%2BWelding%2BMistakes%2B%25E2%2580%2593%2BAvoidance%2Band%2BQuality.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Common-Mig-Welding-Mistakes-Avoidance-and-Quality" border="0" height="140" src="http://1.bp.blogspot.com/-zNYnaQrDm8Q/Vl_routUE7I/AAAAAAAACf4/gsdYLTwHleI/s200/Common%2BMig%2BWelding%2BMistakes%2B%25E2%2580%2593%2BAvoidance%2Band%2BQuality.jpg" title="Common-Mig-Welding-Mistakes-Avoidance-and-Quality" width="200" /></a></div>
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Welding is an awesome skill. Not all can be able to weld and persistently stick to this career. That is why when your welders perform this kind of task, make sure they are well versed about it for their own safety and better work productivity.</div>
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For Mig welding, there is a lot that can go wrong with this type of welding. The frequent mistakes associated with Mig welding and how to get it right are all mentioned below by <b><a href="http://vnmanpower.com/" target="_blank">VMST</a></b> – a veteran provider of welding manpower. </div>
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<b>COMMON MIG WELDING MISTAKES</b></h3>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The parts to be welded have to be very clean. Dirt and paint should not be there when the parts are being welded. This is a general mistake made by a rookie welder. If the parts and the surface to be welded aren’t clean, the weld won’t be proper and a bad weld will be the consequence. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>While Mig welding, you need use the right type of gas. Some people may tend to use cheap variety of gas. It will be cheap to just use carbon dioxide, but a mixture of gases will generate the desired result and good welding. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>If the polarity is wrong, the weld bead that is created won’t look good. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The sizes of contact tip should be right. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The speed shouldn’t be too slow or too fast.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>During welding, the wind should be blocked and should lead to proper shielding.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>If the welding is really cool on a big piece of material, proper welding won’t take place. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The sizes of welding machine should be right. A very small machine for a very large material won’t do the work properly. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The components of wire feeders – for example, contact tips, liner and other parts should be properly maintained to give the desired result of proper welding.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>The filler material should have the right tensile strength. If this is not correctly matched, the result won’t be right. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>When welding up a joint, some welders leave too large or uneven of the gap in between two panels that they’re joining. You may want a really small gap on some joints, but in most cases, there will be next-to-no gap between the panels when welding. Too large of a gap, then you will have trouble with the bead burning away the panel edges and enlarging the gap. </div>
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So it’s necessary to follow some rules to get Mig welding right. </div>
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<b>HOW TO GET MIG WELDING RIGHT</b></h3>
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<b><i><span style="color: #274e13;">1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Cleanliness is the King</span></i></b> – There are times you can’t always get your work area surgically clean when Mig welding. Still, you should take every step possible to do it if you expect a clean, strong weld. Your work area should be free of all grease, rust and coatings. This can be done with a wire wheel or a grinder.</div>
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<b><i><span style="color: #274e13;">2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Set up Mig welding machine properly</span></i></b> - It has 3 settings: voltage, wire speed feed, and shielding gas flow rate. On the interior panel of Mig welder, there will be the chart that will give you the correct setting for different materials according to their thickness. The shield gas flow rate should be protected from surrounding air. </div>
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<b><i><span style="color: #274e13;">3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Check your polarity settings</span></i></b> – If you’re welding with the solid wire, set your machine to the reverse polarity (DCEP – Direct current electrode positive). But if you’re welding with flux core Mig wires, you may want to use the DCEN setting (Direct current electrode negative). You should also experiment a little on some scrap metal. Indeed, you should definitely practice on scrap metal if you are not sure which setting is right!</div>
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<b><i><span style="color: #274e13;">4.<span class="Apple-tab-span" style="white-space: pre;"> </span>Check your ground</span></i></b> - You welder is poorly or inconsistently welding, even after you tested your settings on some scrap metal? A chance is that you have a poor ground. Besides having as clean of a work area as possible, you need a clean surface to ground your machine. If you don’t have a good spot to clamp to, then tack weld a stud or a bolt to your work area to get a good continuous ground. </div>
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<b><i><span style="color: #274e13;">5.<span class="Apple-tab-span" style="white-space: pre;"> </span>Check your gas</span></i></b> – To make a clean weld, the weld puddle needs purifying whilst it is being formed. This is where the shielding gas is brought into play. It is one of other essential keys to producing a clean weld. Make sure you have a sufficient amount of gas coming out of nozzles when welding; the amount needed can vary by the conditions that you’re welding (try to be out of such direct moving air as wind, fans, etc.) and the surfaces that you’re welding on. <b><a href="http://vietnamwelder.blogspot.com/search/label/basic%20mig%20welding%20techniques" target="_blank">Mig welding</a></b> can be done with machines only using flux core Mig wire though, you’re suggested to choose a Mig welder which is versatile enough to use gas as well. Welding with shielding gas is the best way to create the cleanest weld with little-to-no cleanup. </div>
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<b><i><span style="color: #274e13;">6.<span class="Apple-tab-span" style="white-space: pre;"> </span>Use the proper welding technique</span></i></b> - The welding technique for all welding types is the same. People use the weave technique with a side to side motion, or the whipping technique with a back to forth motion, a circular motion. Whatever technique is used, the wire stickout shouldn’t exceed three-fourth of an inch. Otherwise, the shielding gas won’t be able to do the work properly.</div>
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<b><i><span style="color: #274e13;">7.<span class="Apple-tab-span" style="white-space: pre;"> </span>Stickout has influence</span></i></b> - When setting up your machine, you need make sure that you have your contact tip sticking out the right amount for the welding type you are doing. The rule of thumb is that the welding tip has less than ½" of stickout. You can get away with a bit more if you’re welding on the thinner sheet metal (body panels, etc.). Still, you need stick in that range for just about all applications. Always check your stickout each time before welding.</div>
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<b><i><span style="color: #274e13;">8.<span class="Apple-tab-span" style="white-space: pre;"> </span>Proper joint construction</span></i></b> – Take time to put together an even, tight gapped joint. Doing so will better the final appearance and the strength of the job. The proper joint prep can be panel holding system, intergrip panel clamps, welding clamp plier set. </div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-k9AQ0ZllG-k/Vl_1cW5ujyI/AAAAAAAACgI/4oxk616Pqsg/s1600/a%2Bgood%2Bwelding%2Bhelmet%2Bhelps%2Bwith%2Byour%2Bfinal%2Bweld%2Bquality.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="auto-dimming-helmet" border="0" height="272" src="http://1.bp.blogspot.com/-k9AQ0ZllG-k/Vl_1cW5ujyI/AAAAAAAACgI/4oxk616Pqsg/s320/a%2Bgood%2Bwelding%2Bhelmet%2Bhelps%2Bwith%2Byour%2Bfinal%2Bweld%2Bquality.jpg" title="Common-Mig-Welding-Mistakes-Avoidance-and-Quality" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>A good welding helmet helps with your final weld quality.</i></td></tr>
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<b><i><span style="color: #274e13;">9.<span class="Apple-tab-span" style="white-space: pre;"> </span>Use auto-dimming helmet</span></i></b> – Static darkness welding helmet works ok if you’re in a really well light area or if you’re good at flipping down your helmet and striking an arc in quick motion at the same time. Still, with today's advancements in the welding accessories, it isn’t necessary anymore. Now you can find cost-efficient, quality auto dim welding helmets quite easily. Being comfortable when welding helps you better your weld quality and allows you to see your work area properly before, during and after you weld.</div>
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<b><i><span style="color: #274e13;">10.<span class="Apple-tab-span" style="white-space: pre;"> </span>The angle matters</span></i></b> – The tip angle when welding can also really important. Ideally, you should be straight on when you’re doing quick spot or plugging welds, whilst keeping roughly a 10 degree angle when welding with the pulling or pushing method is satisfactory. </div>
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<b><i><span style="color: #274e13;">11.<span class="Apple-tab-span" style="white-space: pre;"> </span>Choose the correct wire size</span></i></b> - ‘Bigger is better’ doesn’t always hold true in this case. It is also dependent on the welding type you’re doing and the surface you’re welding on. If you’re mostly working with such thin metal as body panels of a car, you would want to use .023 solid core wire. That will allow you to keep down the temps as opposed to using a much thicker wire. And in case you didn’t know, too much heat is equal to metal warpage. Keep in mind though, if you’re doing chassis or suspension work that the metal is substantially thicker, you would want to use .30 or .35 solid core wire. This will ask for 110 machines to run at the higher end of voltage spectrum. </div>
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<b><i><span style="color: #274e13;">12.<span class="Apple-tab-span" style="white-space: pre;"> </span> Be safe</span></i></b> - There are lots of <b><a href="http://vietnamwelder.blogspot.com/search/label/hazards%20of%20welding" target="_blank">hazards of welding</a></b>, lots of them are pretty obvious, whilst others can be easily overlooked. Make sure you wear the proper attire when welding. That means long pants, leather welding gloves, welding jacket, closed toe shoes. Dressing properly can save you from being seriously burnt from the intense heat and light generated when welding. Also, keep in mind that you need keep your work area safe. Rather, cover or remove all flammable objects from the work area, and allow for proper ventilation from any fumes that can be generated when welding. </div>
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<b><i><span style="color: #274e13;">13.<span class="Apple-tab-span" style="white-space: pre;"> </span>Give regular Mig maintenance - </span></i></b>One of easiest ways to make your Mig gun run more seamlessly is to replace the liner. A wire, oftentimes, will start to jam or at least run less smooth than before. Still, if you keep some liners handy, you will be prepared to get a new one when you need it. The loss of weld quality, loss of time on task, and the like make some investment in a new liner worth it. Also, take time to clean out spatter for the Mig gun and replace the torch tip when necessary. When you can keep a steady flow of electrode into weld puddle, Mig welding works best. </div>
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There are lots of things that can go wrong while Mig welding though, by putting these tips into practice, you will be able to avoid some of most common mistakes that come up while Mig welding. </div>
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Anonymousnoreply@blogger.com3tag:blogger.com,1999:blog-8596744873665577413.post-61751317385765886292015-11-26T16:48:00.000+07:002015-11-27T11:58:28.949+07:0021 Tig Welding Tips That You Need to Keep in Mind<div style="text-align: justify;">
<b><i>There are many ways to control the arc, puddle, final outcome of your weld. Here are 21 Tig welding tips that are essential to keep in mind. </i></b></div>
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You may like reading:</div>
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<a href="http://vietnamwelder.blogspot.com/2015/11/tig-welding-process.html" target="_blank"><i>All around Tig Welding Process with Detailed Explanation</i></a></div>
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<a href="http://vietnamwelder.blogspot.com/2015/08/tig-welding-aluminum-tips-that-will.html" target="_blank"><i>Tig Welding Aluminum Tips That Will Help You Tremendously</i></a></div>
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<a href="http://2.bp.blogspot.com/-48BaMFCVT7E/VlbKPKf0S2I/AAAAAAAACec/VB3XywhOosc/s1600/21%2BTig%2Bwelding%2Btips%2Bthat%2Byou%2Bneed%2Bto%2Bkeep%2Bin%2Bmind.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="21-Tig-Welding-Tips-That-You-Need-to-Keep-in-Mind" border="0" height="164" src="http://2.bp.blogspot.com/-48BaMFCVT7E/VlbKPKf0S2I/AAAAAAAACec/VB3XywhOosc/s200/21%2BTig%2Bwelding%2Btips%2Bthat%2Byou%2Bneed%2Bto%2Bkeep%2Bin%2Bmind.png" title="21-Tig-Welding-Tips-That-You-Need-to-Keep-in-Mind" width="200" /></a></div>
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More than Mig and arc welding, Tig welding asks for lots of more practice to be proficient in. Patience is a must. Each time you pick up a torch, are you excited? It is a challenge and really gratifying when everything is fine. </div>
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There are many ways to control the arc, puddle, final outcome of your weld. Here are 21 <b>Tig welding tips</b> that are essential to keep in mind. </div>
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1.<span class="Apple-tab-span" style="white-space: pre;"> </span>Always Tig weld using the minimum power - When you start practising welding on thin sheet metal, say 1.5 mm thick. Without any other information on the metals, their thickness and others, the minimum current that will just sustain a melt pool is a good starting point. Tig welding is penetrative – getting that penetration is much in the technique and just secondarily on the power input. </div>
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2.<span class="Apple-tab-span" style="white-space: pre;"> </span>Cleanliness is a must - Unlike other types of welding, Tig welding requires a very clean surface to create a clean arc and nice welds. Make sure you clean the work surface really well before you weld. For aluminum and stainless, you are recommended to use a dedicated stainless brush for each type of metal you are welding on. You will find the more time you spend cleaning your work area before welding, the better final outcomes will be. </div>
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In case you are interested in:</div>
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<a href="http://vietnamwelder.blogspot.com/2014/04/how-to-tig-weld.html" target="_blank"><i>How to TIG Weld</i></a></div>
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3.<span class="Apple-tab-span" style="white-space: pre;"> </span>Choose the correct Tungsten - Depending on the surface you’re working on, you may need change out your Tungsten. Conventionally, green Tungstens are applied for aluminum and red for steels, but some people favor the red Tungstens across the board. You are suggested to try the ‘conventional’ use of each before making a decision. Also, make sure you use the right thickness of Tungsten. If it is too large, you will have to use too much heat to strike an arc and could risk burning or warping through the work-piece. Using too small of a Tungsten, you can damage it from being overheated. </div>
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4.<span class="Apple-tab-span" style="white-space: pre;"> </span>Touch the Tungsten tip, regrind - If you touch the tip into the puddle, you must regrind it. Otherwise, the arc will wander off course and the weld won’t be as nice and smooth as it should be. </div>
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5.<span class="Apple-tab-span" style="white-space: pre;"> </span>Keep up productivity - Make sure you avoid being distracted and interrupted. Keep spare, ready-ground Tungstens. Have all the pieces you plan to weld cleaned and ready. Also, keep lots of extra filler rod within arm’s reach. </div>
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6.<span class="Apple-tab-span" style="white-space: pre;"> </span>Grind your Tungsten correctly - Make sure you are grinding the tungsten correctly. Many beginners don’t do it right and have to accept the unpleasant results. Make sure you grind the tungsten length-wise and as even as possible. If you are not using a Tungsten sharpener, use a dedicated bench grinder to grind Tungstens on. If you use an all-purpose grinder, your Tungstens can be contaminated.</div>
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For those who are interested in:</div>
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<a href="http://vietnamwelder.blogspot.com/2015/08/post-welding-operations-to-ensure-productivity.html" target="_blank"><i>Post Welding Operations to Ensure Productivity</i></a></div>
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7.<span class="Apple-tab-span" style="white-space: pre;"> </span>2º Tungsten electrodes are mildly radioactive. When grinding, wear a respirator.</div>
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8.<span class="Apple-tab-span" style="white-space: pre;"> </span>Shielding gases for Tig are:</div>
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100% Argon – the most common gas</div>
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75% Argon/25% Helium – the next hottest gas</div>
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75% Helium/25% Argon – the hot gas. Higher percentage of helium in the gas can result in arc starting problems.</div>
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100% Helium – the real hot gas. Difficult to start arc. </div>
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9.<span class="Apple-tab-span" style="white-space: pre;"> </span>Your gas should be argon (not mixed) for aluminum and steel, and should be set between 15-20 cfh. If you set it too high, it will blow away from the weld. </div>
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10.<span class="Apple-tab-span" style="white-space: pre;"> </span>The bigger the rod is, the easier it is to feed. Use larger diameter rods (from 3/32” to 1/8”) when learning Tig if possible. </div>
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For your information:</div>
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<a href="http://vietnamwelder.blogspot.com/2014/12/example-about-tig-welding.html" target="_blank"><i>Example about Tig welding</i></a></div>
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11.<span class="Apple-tab-span" style="white-space: pre;"> </span>Rod angle and torch angle shouldn’t be the same. It’s because the heat will bounce off of your </div>
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part and melt your rod before you want it to. </div>
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12.<span class="Apple-tab-span" style="white-space: pre;"> </span>If a ball forms on the end of the rod when welding, you are doing something wrong. The problem can be improper rod to torch angle or not being aggressive enough. When feeding rod, make sure you push the rod into the welding pool.</div>
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13.<span class="Apple-tab-span" style="white-space: pre;"> </span>Mig and Tig wire are the same. That is, one can use Mig wire to Tig weld just in case.</div>
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14.<span class="Apple-tab-span" style="white-space: pre;"> </span>Aluminum takes plenty of heat to weld. Don’t be afraid to raise the welding current. Welding with a ‘hot’ machine will allow you to raise welding speed. The ‘hot’ machine cum fast travel speed means less input of heat into the part and reduces the possibility of distortion and/ or burn-through. </div>
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For your information:</div>
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<a href="http://vietnamwelder.blogspot.com/search/label/distortion%20in%20welding" target="_blank"><i>Master the Art of Welding Distortion Control with These 13 Practical Ways</i></a></div>
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15.<span class="Apple-tab-span" style="white-space: pre;"> </span>Be at the welding temperature with foot pedal depressed ¾ of the way. The ¼ pedal you have left is in reverse. That technique enables you to gently trail off the arc at the end of your weld. Indeed, ending the arc suddenly can make the weld crack.</div>
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16.<span class="Apple-tab-span" style="white-space: pre;"> </span>Weld stainless steel using gas lenses. The screen in the lenses allows much better gas coverage of welds. You can use gas lens to weld all materials. They also enable you to stick your Tungstens up to 1” out of the cup by increasing the gas flow. The typical gas flow rates are about 15 to 20 cfh.</div>
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17.<span class="Apple-tab-span" style="white-space: pre;"> </span>Torch angle impacts penetration. The more vertical the torch is, the more arcs are directed into the part. </div>
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18.<span class="Apple-tab-span" style="white-space: pre;"> </span>Wear thin gloves on your rod feeding hand. You need maximum feel to properly feed the rod. Learn to feed rod out with your ‘pencil’ fingers and thumb.</div>
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19.<span class="Apple-tab-span" style="white-space: pre;"> </span>Get filler metal charts that will let you select correct rods for whatever materials you’re welding.</div>
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20.<span class="Apple-tab-span" style="white-space: pre;"> </span>Let the Tungsten stick out of cup 1/4” to 5/16” when you weld high-amp aluminum. Otherwise, heat will radiate from the cup to the Tungsten and lower output, especially if the orifice is too small. </div>
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21.<span class="Apple-tab-span" style="white-space: pre;"> </span>Put a glove, wood, or something non-conducting on your welding table to protect your arms from shocking hazard. Sweat can worsen this problem. Rest your torch holding hand on a steady object for better results. </div>
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Helpful information that you may like reading:</div>
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<i><a href="http://vietnamwelder.blogspot.com/2015/10/avoid-welding-arc-flash.html" target="_blank">Effectively avoid welding arc flash only if you understand those things</a></i></div>
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<a href="http://vietnamwelder.blogspot.com/search/label/hazards%20of%20welding" target="_blank"><i>Welding Health Hazards and Prevention That Your Welders Must Know About </i></a></div>
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Those are some basic <b>tips for Tig welding</b>. If you have any tips to share, don’t hesitate to leave them in the comment. </div>
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Anonymousnoreply@blogger.com163tag:blogger.com,1999:blog-8596744873665577413.post-10488659332628222002015-11-19T14:42:00.001+07:002015-11-19T15:06:16.231+07:00Math for Welders: Its Real Importance and Practical Tips<div style="text-align: justify;">
<b><i>Learning a little mathematics is absolutely necessary if you want to master at welding. You will only need to understand this basic math for welds to become a really good welder. </i></b></div>
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I am terrible at math. How about you?</div>
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Math, indeed, is important in lots of skilled trades, especially welding. Learning a little maths will keep you from wasting gas, welding rods and ruining projects, and it is definitely necessary if you want to master at welding. You will only need understand some <b>basic welding maths</b> to become a really good welder, those include fractions and decimals, understanding simple formulas and know your way about the maths of geometrical shapes.</div>
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<b><span style="color: #073763;">What and how much math does a welder need?</span></b></h3>
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The reality is that welders need those math knowledge and skills: </div>
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<b><span style="color: #4c1130;">Fractions and Decimals</span></b></h4>
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Whether you are working in fabrication or construction, various basic welding applications require a basic understanding of measurements to size, cut and fit metal and other materials accurately. Measurements have everything to do with computational fractions, which may also need converting to decimals in certain situations. </div>
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Reading and understanding schematics and blueprints requires a general knowledge of fractions and decimals to understand measurement breakdown and apply to the item or structures you are building. A <b><a href="http://vnmanpower.com/en/search/welder.html" target="_blank">good welder </a></b>can tell how many times ¾ goes into four and a half without having to rely on a calculator. Some practice with any good maths book will make you well versed in adding, subtracting, multiplying and dividing fractions. As problems like how to write 3/16 of an inch in decimals rise up frequently, you need start learning with a calculator and then try to do more and more in your head. Doing so will save lots of time. </div>
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<b><span style="color: #4c1130;">Geometry</span></b></h4>
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Knowledge about geometry, including understanding, calculating and measuring angles, measuring and calculating volume and area of various shapes, and calculating diameter (distance from one side of circle to the other), radius (distance from the center of circle to one side) and circumference (distance around the outside of circle) of circular or round objects, are all essential skills for any welders. </div>
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Clearly, forming joints is a really big part of welding, and joints form angles and angles are prime time in geometry. </div>
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Getting a grip of how to use drafting tools is really helpful when constructing joints. Those tools help make sure the joints are square and determine the diameter, radius and circumference of a circle. </div>
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You may like reading:<br />
<i><a href="http://vietnamwelder.blogspot.com/search/label/essential%20welding%20skills" target="_blank">19 Important Skills for Welding Occupation</a></i></div>
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<b><span style="color: #4c1130;">Trigonometry</span></b></h4>
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Whilst we are getting up to some rather high math when it comes to trigonometry, lots of welders agree that a rudimentary understanding of trig, inclusive of sine, cosine and tangent, is an all-important tool when it comes to problem solving, especially in calculating angles and length of each side in a specific shape you are trying to replicate. </div>
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Also, calculating area and volume, calculating degrees and understanding formulas are important skills for welding, which is rooted in trigonometry.<br />
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For those who are interested in:<br />
<a href="http://vietnamwelder.blogspot.com/2015/07/what-are-requirements-to-become-a-welder-in-vietnam.html" target="_blank"><i>What are Requirements to Become a Welder in Vietnam?</i></a></div>
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<b><span style="color: #4c1130;">Volume and Area</span></b></h4>
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Calculating volume and area are components of geometry and trigonometry as well. </div>
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Main welding related calculations include:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Calculating weld volume, area of segment (weld reinforcement) which defines the rounded cap placed on the weld joint.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Calculating required pounds of steel to reinforce a joint effectively.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Estimating the required materials for a project. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Determining the volume of materials needed to fit in a certain size area.<br />
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In case you are interested in:<br />
<a href="http://vietnamwelder.blogspot.com/2015/07/top-13-things-to-teach-your-novice-welders-part-1.html" target="_blank"><i>Top 13 Things to Teach Your Novice Welders </i></a></div>
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<b><span style="color: #4c1130;">Formulas</span></b></h4>
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There are some formulas applied in welding, so welders should feel comfortable with formulas and seize how to use them. There will be formulas related to shapes and formulas related to gasses. Understanding formulas not just means knowing how to use the formulas in calculations but means knowing what a formulas means when looking at it. For instance, one of the gas laws says that pressure times volume equals to temperature times a constant. A master welder will look at that formula and tell you immediately what happens to the temperature if the pressure drops and the volume stays the same. </div>
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<b><span style="color: #073763;">Tools and resources for welding math skill-up</span></b></h3>
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<a href="http://3.bp.blogspot.com/-x2RtBFybb7Y/Vk18nx_eyzI/AAAAAAAACc8/cBZH7gahm2M/s1600/Tools%2Band%2Bresources%2Bfor%2Bwelding%2Bmath%2Bskill-up.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Math-for-Welders-Its-Real-Importance-and-Practical-Tips-2" border="0" height="320" src="http://3.bp.blogspot.com/-x2RtBFybb7Y/Vk18nx_eyzI/AAAAAAAACc8/cBZH7gahm2M/s400/Tools%2Band%2Bresources%2Bfor%2Bwelding%2Bmath%2Bskill-up.jpg" title="Tools-and-resources-for-welding-math-skill-up" width="400" /></a></div>
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<b><span style="color: #4c1130;">Calculator is great tool, but…</span></b></h4>
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A calculator is, without doubt, an important tool for welders though, what if you are out in the field doing some repairs or on the construction site and don’t have ready in hand a calculator?</div>
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Learning to write out long-form computations and equations is crucial, which will not just help you when you don’t have a calculator handy, but gives a better illustration of a specific scenario or problem you are trying to work through. As you are able to work through a particular problem, you could apply the same process in the future. </div>
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<b><span style="color: #4c1130;">Resources</span></b></h4>
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There are many excellent books and online resources that can help you hone your <b>welding math skills</b>. Here are some authoritative resources suggested for you:</div>
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<b><i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Practical Problems in Mathematics for Welders - Robert Chasan </i></b></div>
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This presents a highly effective, practical approach to maths with latest procedures, technologies and practices in today’s welding industry. You will clearly see how welders rely on math skills to solve both daily and more challenging problems, from measuring materials for cutting and assembling to ordering materials effectively and economically. Easy-to-read explanations, a number of real-world examples, and practice problems shed light on math skills most important in welding these days, from basic procedures to math tools needed for today’s welding. </div>
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<b><i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Math to Build On - Johnny Hamilton </i></b></div>
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This easy-to-follow book explains the basic math used in manufacturing, construction and design. Starting with fractions and decimals and moving on to mitered turns and arcs, those principles are made as understandable as possible thanks in large part to detailed illustrations and practical applications. The result is higher efficiency, productivity and confidence in tasks from initial design to final product. </div>
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<b><i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>Math for Welders - Nino Marion </i></b></div>
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This is a combination of text and workbook that give many practical exercises designed for welding students to apply basic math skills. Main areas of instructional content include whole numbers, common fractions, decimal fractions, percentage, measurement.<br />
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<b><i>•<span class="Apple-tab-span" style="white-space: pre;"> </span>The AWS Fabrication Math I course </i></b></div>
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If you suffer from math phobia, you can access this course on American Welding Online. It offers a thorough introduction to <b>basic math skills</b>. This riveting, multimedia, format gives explicit, step-by-step verbal and visual interpretations that make each math concept understandable. Topics cover place value, simplification, measurement, estimation, addition, subtraction, multiplication and division of whole numbers, mixed numbers, fractions, decimals. This self-paced, online course allows you to start at whatever level you select. For example, you may desire to to skip straight to conversions, or you may want to review addition and subtraction before moving on. </div>
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Anonymousnoreply@blogger.com1tag:blogger.com,1999:blog-8596744873665577413.post-64013073081622279382015-11-12T15:04:00.001+07:002015-11-12T15:15:25.033+07:00All around Tig Welding Process with Detailed Explanation<div style="text-align: justify;">
<b><i>This article gives an overview of Tig welding process with explaining all minute details. So you can expect a better grip of this process after finishing this read. </i></b></div>
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<a href="http://2.bp.blogspot.com/--62rgEVnXBk/VkRD1wruP_I/AAAAAAAACbc/biVSCwLp6mI/s1600/All%2Baround%2BTig%2BWelding%2BProcess%2Bwith%2BDetailed%2BExplanation.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="All-around-Tig-Welding-Process-with-Detailed-Explanation-1" border="0" height="180" src="http://2.bp.blogspot.com/--62rgEVnXBk/VkRD1wruP_I/AAAAAAAACbc/biVSCwLp6mI/s320/All%2Baround%2BTig%2BWelding%2BProcess%2Bwith%2BDetailed%2BExplanation.jpg" title="All-around-Tig-Welding-Process-with-Detailed-Explanation" width="320" /></a></div>
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<b><a href="http://vietnamwelder.blogspot.com/search/label/Tig%20welder" target="_blank">Tungsten Inert Gas Welding (TIG)</a></b> is known as one of the two types of gas shielded arc welding process (the other one is Metal Inert Gas Welding (MIG)). Also, in the dual-shield mode of Flux Core Arc Welding (FCAW), a gas supply is added along with self-shielding of core flux. That’s why FCAW is also listed in the gas shield arc processes. The principle of <b>Tig welding process </b>is based on the production of arc using the high melting and non-consumable tungsten electrode. That reasons why this process is referred to as tungsten arc gas-shielded (TAGS) (also, argon arc welding, tungsten inert gas, gas tungsten arc welding). Gas shielding is applied to protect the weld puddle from atmospheric contamination. Because those gases are transparent, the weld puddle is made visible to the welder. Tig process features:</div>
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<b><span style="color: #b45f06;">Distinct features</span></b></h3>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>In Tig welding, no flux is used, then you don’t have to fear about corrosion due to flux entrapment. </div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>No slagging, which helps with elimination of post weld cleaning.</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Because there is no spark and fumes, you can produce sound welds with perfect definition.</div>
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Non-consumable tungsten electrodes are used to produce an arc of substantial high temperature that helps melt the work metal. Air is driven out owing to the envelope of inert gas that averts the weldment, tungsten electrode and heat affected zone (HAZ) from oxidation. Unlike <b><a href="http://vietnamwelder.blogspot.com/search/label/Mig%20welder" target="_blank">Mig welding</a></b>, tungsten electrode isn’t consumed; rather, it gives arc to melt the additional filler metal. Filler metal is fed to the weld puddle. </div>
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Normally, there are 2 modes of Tig welding: semi-automatic, automatic. In semi-automatic, the operator has to configure the current and gas flow settings, and then manually deal with the torch and filler road. Still, in automatic mode, the operator sets the speed of travel, arc length, gas flow rate, filler rod position, and then observes the operation and controls where it’s needed. </div>
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First, Tig was introduced to weld magnesium to mitigate rapid corrosion problems. The technique was successfully applied to attain best results with no consequent corrosion. This process was introduced with distinct characteristics as opposed to other arc processes. For shielding, the gas flow rate can be controlled by flow rate and manifold. During welding, the gas flow not just shields the weld and filler metal but protects the torch. There is also a gas delay feature allowing gas to flow in the preset time, after the current has been shut off. </div>
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Tig is used in both welding ferrous and non-ferrous metals with a wide range of thickness not beyond 8mm. Both AC and DC current supplies are used with the range from 15 to 350 amps. Using small diameter electrodes and suitable current range, this process is also applied in repair work and new manufacturing. Though it’s relatively slower than other arc processes, it creates high-quality welds with perfect definition in carbon steel, stainless steel, aluminum. The DC source is used for welding stainless steel, carbon steel, nickel, copper alloy. Meanwhile, AC source is suited for welding aluminum and its alloys. </div>
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<br /></div>
<div style="text-align: justify;">
For those who are interested in:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/08/tig-welding-aluminum-tips-that-will.html" target="_blank"><i>Tig Welding Aluminum Tips That Will Help You Tremendously</i></a></div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/09/how-can-i-weld-aluminum-without-welder.html" target="_blank"><i>How can I Weld Aluminum Without a Welder?</i></a></div>
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<b><span style="color: #b45f06;">Equipment</span></b></h3>
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<b><i>Tig torch</i></b></h4>
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Different sizes of torches are available for different current-carrying capacities. The assembly of Tig torch includes a switch for different welding operations. The torch casting holds electrode and gas nozzles. </div>
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<b><i>Additional features</i></b></h4>
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<b>Water cooling system</b></div>
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As you weld with high amperages, cooling is required. A water cooling system is installed where water is circulated through the torch to keep it cool. In the past, systems were connected with additional cooling system, but nowadays, it’s installed inside the modified equipment. The water flow is controlled either by torch or by foot pedal.</div>
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<b>DC suppression</b></div>
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In aluminum and magnesium alloy welding, the surface oxide formation is the major concern. In aluminum welder, because the arc is formed between tungsten and aluminum, chances are that AC is converted to DC. That’s why a DC suppressor is employed to avert the conversion from AC to DC mode. </div>
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<b>Contactor</b></div>
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It puts the arc to be extinguished when delay shielding is needed for cooling purposes. This way, it not just protects weld but give means of safety to your welder. This process is also controlled by foot pedal and torch. </div>
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<b>Arc initiation</b></div>
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Arc initiation by touching the electrode with base metal can induce serious contamination problems and arc unstability. Clearly, tungsten inclusion can lead to localized hard spots. The transfer of the base metal to tungsten electrode can also induce contamination and consequently unstabilize the arc. In order for the electrode not to touch with your work piece, high frequency spark is created, which causes some ionization in spark gap. The current continues to flow as a result of this ionized spark gap. This feature also helps enhance the life span of tungsten electrode. Below are arc initiation methods that are often used in modern equipment:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Scratch start<br />
In this method, the electrode is brought down to work piece, and gently scratched for arc initiation. As stated above, the slight contact can lead to the contamination problems. This method is taken only in the applications that contamination isn’t serious.<br />
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Lift up<br />
Here the electrode is brought down to contact with work piece at the initial point of welding. Torch switch is pressed, creating contact, and still no current is generated. When the electrode is lifted up, the current continues to flow and quickly increase to the pre-set value. This rapid rise is referred to as slope up.<br />
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Slope up<br />
Slope up is the rapid increase of welding current to the pre-set current on the power source. Using the switch, the welder can set the time required for the increase of current to the selected amperage. This feature makes less contamination and reduces the risk of burning thin sheets at the initial point of welding.<br />
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Slope down<br />
Slope down is the gradual drop of welding current to zero. It is defined as the time taken to decrease the current until the arc is extinguished. This feature is used for filling the crater at the end of the weld. Often, this function is operated with the support of torch switch and foot pedal. </div>
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<br /></div>
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In case you are interested in:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/10/avoid-welding-arc-flash.html" target="_blank"><i>Effectively avoid welding arc flash only if you understand those things</i></a></div>
<div style="text-align: justify;">
<i><a href="http://vietnamwelder.blogspot.com/search/label/defects%20of%20welding" target="_blank">Defects in welding</a></i></div>
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<b><i>Electrode used in Tig welding</i></b></h4>
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Tungsten is the high melting point metal around 3000 degree Celsius. In the <b>Tig welding process</b>, pure tungsten with its best thermal and electrical conductivity is employed. Nowadays, alloyed tungsten with 1-2% thorium and zirconium is used for better arc stability and enhanced electrode life. There are 2 types of alloyed tungsten electrodes: thoriated electrodes for DC mode and zirconiated electrode for AC mode. Also, noticeably, electrode diameter is determined by current polarity.</div>
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Electrode grinding is one of main concerns in attaining consistent performance in welds. Electrodes are ground as per application. There are 2 ways of electrode grinding: manual grinding and machine grinding. Machine grinding leads to consistent grinding. Care must be taken while manual welding. </div>
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As with electrode shape, electrode is often ground to the required vertex angle. For the DC usage, the electrode is ground to the length of 1-3 x the diameter of electrode.</div>
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Point length of electrode = 1-3 x diameter of electrode</div>
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This way, the lower the current is, the longer the point length will be. Electrodes are normally available with the diameter range of 0.8, 1.6, 3.2, 4.0 and 6.4 mm.</div>
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For the AC usage, the electrode side is ground to 45 degree, remaining the front side to be flat. This offers the spherical shape as shown in the below image.</div>
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<a href="http://2.bp.blogspot.com/-90PBEZzmZ54/VkRH1usf6UI/AAAAAAAACbo/kp2zlbRr20M/s1600/TIG%2Bwelding%2Bbeads.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="All-around-Tig-Welding-Process-with-Detailed-Explanation-2" border="0" height="320" src="http://2.bp.blogspot.com/-90PBEZzmZ54/VkRH1usf6UI/AAAAAAAACbo/kp2zlbRr20M/s320/TIG%2Bwelding%2Bbeads.jpg" title="tig-welding-beads" width="240" /></a></div>
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Electrode installation in torch is simple. The electrode is installed in torch, and held tightly thanks to grippers known as sockets. They can grip and hold electrodes of various diameters.</div>
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<b><i>Gas nozzles</i></b></h4>
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Those nozzles are made of high temperature ceramic materials for bearing high welding temperature. As stated above, some nozzles are equipped with water cooling system. Only the right choice of gas nozzle size gives better protection of weldment, weld pool as well as filler material. Different shapes of nozzles are available for different types of jobs. Small-size nozzles are available for confined areas while long shapes are available for deep-groove joints.</div>
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<b><i>Gas lens</i></b></h4>
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Gas lens are offered to prevent the turbulence of gas flow. Poor gas flow may not give quality shielding service; that’s why gas lens are used to give consistent and smooth gas flow, well shielding the weld puddle. Thanks to gas lens, electrode extension can also be attained for access to complicated areas.</div>
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Anonymousnoreply@blogger.com2tag:blogger.com,1999:blog-8596744873665577413.post-16535122408820617392015-11-07T09:39:00.000+07:002015-11-07T09:46:35.952+07:00Master the Art of Welding Distortion Control with These 13 Practical Ways (Part 2)<div style="text-align: justify;">
<b><i>When you weld on stainless steel or thin sheet metal, the parts are often warped eventually. You tried clamping down all the pieces before welding. But when you remove the clamps, the parts get warped. What can you do for welding distortion control?</i></b><br />
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See also:<br />
<a href="http://vietnamwelder.blogspot.com/2015/11/welding-distortion-control-part-1.html" target="_blank"><i>Master the Art of Welding Distortion Control with These 13 Practical Ways (Part 1)</i></a></div>
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<a href="http://3.bp.blogspot.com/-rjOEfmjw3LE/Vj1fQIxKaWI/AAAAAAAACas/RyD7Wd2zIR4/s1600/Master%2Bthe%2BArt%2Bof%2BWelding%2BDistortion%2BControl%2Bwith%2BThese%2B13%2BPractical%2BWays%2B%2528Part%2B2%2529.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Master-the-Art-of-Welding-Distortion-Control-with-These-13-Practical-Ways-3" border="0" height="234" src="http://3.bp.blogspot.com/-rjOEfmjw3LE/Vj1fQIxKaWI/AAAAAAAACas/RyD7Wd2zIR4/s320/Master%2Bthe%2BArt%2Bof%2BWelding%2BDistortion%2BControl%2Bwith%2BThese%2B13%2BPractical%2BWays%2B%2528Part%2B2%2529.png" title="Master-the-Art-of-Welding-Distortion-Control-with-These-13-Practical-Ways-Part-2" width="320" /></a></div>
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<b><span style="font-family: "courier new" , "courier" , monospace;">Welding distortion control</span></b></h3>
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<b><span style="color: #cc0000;">8. Plan welding sequence</span></b></h4>
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A nicely planned welding sequence involves placing the weld metal at different points of assembly so that, when the structure shrinks in one place, it counteracts the shrinkage forces of welds made. A good example is welding alternately on both sides of neutral axis to make a complete joint penetration groove weld in the butt joint (Figure 2 (k)). Another example, in the fillet weld, consists of making intermittent welds by the sequences shown in Figure 2 (l). In those examples, the shrinkage in weld 1 is balanced by the shrinkage in weld 2. </div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-IGPOQoAiz1Y/Vj1hMf5MqXI/AAAAAAAACa4/qBF4-6HTq34/s1600/sequence%2Bwelds.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Master-the-Art-of-Welding-Distortion-Control-with-These-13-Practical-Ways-4" border="0" height="148" src="http://3.bp.blogspot.com/-IGPOQoAiz1Y/Vj1hMf5MqXI/AAAAAAAACa4/qBF4-6HTq34/s320/sequence%2Bwelds.png" title="sequence-welds" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;"><i>Figure 2: Distortion can be averted or minimized by techniques that defeat - or use constructively - the effects of heating and cooling cycle.</i></span></td></tr>
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Jigs, fixtures and clamps locking parts into a desired position and holding them until welding is finished can be the most widely used means for <b>distortion control </b>in small assemblies or components. As mentioned earlier, the restraining force given by clamps raises internal stresses in the weldment until the yield point of weld metal is reached. For common welds on low-carbon plate, this stress level will be around 45,000 psi. One may expect this stress to induce considerable movement or distortion after the welded part is removed from the clamps or jig. Still, this doesn’t occur because the strain from this stress is really low as opposed to the amount of movement that would occur if there were no restraint during welding.</div>
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<b><span style="color: #cc0000;">9. Remove shrinkage forces after welding</span></b></h4>
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Peening is one way to counteract shrinkage forces of weld bead when it cools. Basically, bead peening stretches it and makes it thinner, thereby relieving the stresses caused by contraction when the metal cools. Still, this method must be taken with care. For instance, a root bead should be peened never, due to the danger of either concealing or causing a crack. Generally, peening isn’t allowed on the final pass owing to the possibility of covering a crack and interfering with the inspection, and due to the unwanted work-hardening effect. Hence, the utility of this technique is limited, though there have been instances that between-pass peening proved to be the sole solution for the distortion or cracking problem. Before peening is applied on a job, engineering approval should be got. </div>
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Another method availed to remove shrinkage forces is by thermal stress relieving (i.e. controlled heating of weldment to an elevated temperature, followed by controlled cooling). Sometimes 2 identical weldments are clamped back to back, welded and stress-relieved whilst being held in the straight condition. The residual stresses that would tend to distort weldments are, accordingly, minimized. </div>
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For your information:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/08/how-to-mig-weld-aluminium-using-spool-gun.html" target="_blank"><i>How to Mig Weld Aluminium Using Spool Gun</i></a></div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/08/9-helpful-mig-welding-tips-for-brand-new-welders-from-pros.html" target="_blank"><i>9 Helpful Mig Welding Tips for Brand-New Welders from Pros</i></a></div>
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<b><span style="color: #cc0000;">10. Minimize welding time</span></b></h4>
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Because complex cycles of heating and cooling occur during welding, and because time is required for the heat transmission, the time factor impacts distortion. Generally, the weld is desirably finished quickly, before a large volume of surround metal heats up and expands. The welding process, type and size of electrode, welding current and travel speed are associated with the degree of shrinkage and distortion. Using mechanized welding equipment reduces welding time and amount of metal influenced by heat and, consequently, distortion. For instance, depositing a given-size weld on the thick plate with a process that operates at 175 amp, 25 volts and 3 ipm asks for 87,500 joules of energy each linear inch of weld (also, heat input). A weld with just about the same size produced with a process that operates at 310 amp, 35 volts and 8 ipm asks for 81,400 joules each linear inch. The weld created with the higher heat input generally induces a greater amount of distortion. Generally, the fillet weld size (in inches) is the square root of quantity of heat input (kJ/in) divided by 500. That’s why those two welds are most likely not of the same size. </div>
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In case you want to have a look at:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/08/tig-welding-aluminum-tips-that-will.html" target="_blank"><i>Tig Welding Aluminum Tips That Will Help You Tremendously</i></a></div>
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<a href="http://vietnamwelder.blogspot.com/2015/07/8-useful-tips-for-mig-welding.html" target="_blank"><i>8 Useful Tips for Mig Welding</i></a></div>
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Other techniques for welding distortion control:</div>
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<b><span style="color: #cc0000;">11. Water-cooled jig </span></b></h4>
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Many techniques have been developed for controlling distortion on specific weldments. For instance, in sheet-metal welding, a water-cooled jig helps carry heat away from the welded components. Copper tubes are soldered or brazed to copper holding clamps, and water is circulated through tubes during welding. The restraint of clamps also helps reduce distortion. </div>
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<b><span style="color: #cc0000;">12. Strongback</span></b></h4>
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Strongback is another helpful technique for distortion control during butt welding. Clips are welded to the edge of one plate, and wedges are driven under clips to force the edges into alignment and hold them during welding.</div>
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<b><span style="color: #cc0000;">13. Thermal stress relieving</span></b></h4>
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Except in special situations, thermal stress relieving isn’t used for correcting distortion. Still, there are occasions that stress relief is needed to avert further distortion from occurring before the weld is finished. </div>
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<b><span style="font-family: "courier new" , "courier" , monospace;">Wrap up</span></b></h3>
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A checklist for <b>welding distortion control</b>:</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Don’t overweld</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Control fit-up</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use intermittent welds where possible and in line with design requirements</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use smallest leg size as permissible when fillet welding</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>For groove welds, use joints which will minimize the volume of weld metal. Instead of single-sided joints, consider double-sided joints</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Weld alternately on either joint side when possible with multiple-pass welds</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use minimum number of weld passes</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use low heat input procedures. That means high deposition rate and higher speeds of travel</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use welding positioners to attain the maximum amount of flat welding. The flat position allows the use of large-diameter electrodes and high-deposition-rate procedures of welding</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Balance welds around the neutral axis</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Distribute welding heat as evenly as possible through a well-planned welding sequence and weldment positioning</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Weld towards the unrestrained part of member</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Use fixtures, clamps and strongbacks to maintain fit-up and alignment</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Pre-bend the members, or pre-set the joints to allow shrinkage to pull them back into alignment</div>
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•<span class="Apple-tab-span" style="white-space: pre;"> </span>Sequence sub-assemblies and final assembles for the welds to be made continually balance each other around the neutral axis of section. </div>
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Anonymousnoreply@blogger.com3tag:blogger.com,1999:blog-8596744873665577413.post-15083603067004278022015-11-06T16:09:00.000+07:002015-11-07T09:47:13.983+07:00Master the Art of Welding Distortion Control with These 13 Practical Ways (Part 1)<div style="text-align: justify;">
<b><i>When you weld on stainless steel or thin sheet metal, the parts are often warped eventually. You tried clamping down all the pieces before welding. But when you remove the clamps, the parts get warped. What can you do for welding distortion control?</i></b><br />
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See also:<br />
<a href="http://vietnamwelder.blogspot.com/2015/11/welding-distortion-control-part-2.html" target="_blank"><i>Master the Art of Welding Distortion Control with These 13 Practical Ways (Part 2)</i></a></div>
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<a href="http://2.bp.blogspot.com/-Ie7J2MBTgXc/VjxpmtlGceI/AAAAAAAACaQ/1ctYX3X_QzU/s1600/Master%2Bthe%2BArt%2Bof%2BWelding%2BDistortion%2BControl%2Bwith%2BThese%2B13%2BPractical%2BWays.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Master-the-Art-of-Welding-Distortion-Control-with-These-13-Practical-Ways" border="0" height="215" src="http://2.bp.blogspot.com/-Ie7J2MBTgXc/VjxpmtlGceI/AAAAAAAACaQ/1ctYX3X_QzU/s320/Master%2Bthe%2BArt%2Bof%2BWelding%2BDistortion%2BControl%2Bwith%2BThese%2B13%2BPractical%2BWays.png" title="Master-the-Art-of-Welding-Distortion-Control-with-These-13-Practical-Ways" width="320" /></a></div>
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Indeed, all welders have faced welding distortion problem at one time or another. At first, the parts are straight and square, and after welding. Thinner materials are more susceptible because they have less stiffness. Also, stainless steel is more susceptible because it has higher thermal expansion and lower thermal conductivity than carbon steel. </div>
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<span style="font-family: "courier new" , "courier" , monospace;"><b>What is welding distortion?</b></span></h3>
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<b>Distortion in welding</b> eventuates due to the expansion and contraction of weld metal and adjacent base metal during the heating and cooling cycle of welding process. Welding on one side of a part will result in more distortion than if the welds are alternated from one side to the other. During the heating and cooling cycle, many factors impact shrinkage of the metal and cause distortion – for example, physical and mechanical properties that change when heat is applied. When the temperature of weld area rises, yield strength, elasticity and thermal conductivity of steel plate reduce, whilst thermal expansion and specific heat rises. Those changes, in turn, influence the heat flow and heat distribution uniformity. </div>
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<b><span style="font-family: "courier new" , "courier" , monospace;">Distortion causes</span></b></h3>
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Why does distortion occur? The weld metal is deposited at high temperature, above the melting point of material. For steel, it is about 2,500°F (1,370°C). When the weld cools to the room temperature, it shrinks but the adjacent cold base metal restrains it from doing so, inducing high-residual tensile stress. The weld becomes like a stretched rubber band with the work-piece holding the ends. That’s why the base metal moves or springs back when the clamps that holds the work-piece are removed, distorting the part. </div>
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The weld shrinks across its width, causing groove welds to wing up, or fillet welds to close up. When the welding shrinks along its length, it makes base metal twist around the weld. </div>
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For <b>weld distortion prevention or minimization</b>, methods must be taken both in design and welding to overcome the effects of heating and cooling cycle. Weld shrinkage can’t be prevented though, it can be controlled. Below are some practical ways that welders can used to minimize welding distortion.</div>
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<b><span style="font-family: "courier new" , "courier" , monospace;">Welding distortion control</span></b></h3>
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<b><span style="color: #cc0000;">1.<span style="white-space: pre;"> </span>Don’t overweld</span></b></h4>
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The more metal is placed in a joint, the greater the shrinkage is. Correctly sizing the weld not just minimizes distortion but saves weld metal and time. You can use a flat or slight convex bead to minimize the amount of welding metal in a fillet weld; proper edge preparation and fit-up can help minimize the amount of weld metal in a butt joint. The excess weld metal in a highly convex bead doesn’t raise the allowable strength in the code work though, it does raise shrinkage forces. </div>
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When welding the heavy plate (more than 1 inch thick), beveling or double beveling can save a considerable amount of weld metal that translates into less distortion automatically.</div>
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Generally, if welding distortion isn’t a problem, choose the most economical joint. If the distortion is a problem, choose either a joint that the weld stresses balance each other or a joint that requires the least amount of weld metal.</div>
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For those who are interested in:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/search/label/flux%20core%20welding%20tips%20and%20tricks" target="_blank"><i>6 Useful Tips for Preventing Flux Core Welding Problems</i></a></div>
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<b><span style="color: #cc0000;">2. Use intermittent welding</span></b></h4>
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Another way to minimize the amount of weld metal is using intermittent welds rather than continuous welds where possible. For example, for attaching the stiffeners to the plate, intermittent welds can reduce the amount of weld metal by up to 75% while still providing the needed strength.</div>
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<b><span style="color: #cc0000;">3.<span style="white-space: pre;"> </span>Use fewer weld passes </span></b></h4>
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Fewer passes with large electrodes result in less welding distortion than a greater number of passes with small electrodes. Shrinkage due to each pass tends to be cumulative, thus raising total shrinkage when many passes are used. </div>
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<b><span style="color: #cc0000;">4.<span style="white-space: pre;"> </span>Place welds near the neutral axis or the center of the part</span></b></h4>
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Distortion is minimized by giving less leverage for the shrinkage forces to pull the plates out of alignment. Both design of weldment and welding sequence can be effectively used for <b>welding distortion control</b>.</div>
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<b><span style="color: #cc0000;">5.<span style="white-space: pre;"> </span>Balance welds around the neutral axis</span></b></h4>
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Welding on both plate sides offsets one shrinkage force with another to reduce effectively distortion. Here, design of assembly and proper welding sequence are important factors, too. </div>
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In case you are interested in:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/08/5-tips-to-avoid-porosity-in-welding.html" target="_blank"><i>5 Tips to Avoid Porosity in Welding</i></a></div>
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<b><span style="color: #cc0000;">6.<span style="white-space: pre;"> </span>Use backstep welding technique</span></b></h4>
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In the backstep technique, the general welding progression may be from left to right though, each bead segment is deposited from right to left (Figure 1 (g)). When each bead segment is placed, the heated edges expand, temporarily separating the plates at B. Still, when the heat moves out to C, expansion along the outer edges CD would bring the plates back together. This separation is most pronounced when the first bead is laid. With successive beads, the plates get less and less expansion due to the restraint of prior welds. The backstep technique mayn’t be effective in all applications, and it can’t be economically in automatic welding.</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-vTD8T9iqlIo/Vjxscpo3gJI/AAAAAAAACac/S111CcAdhNw/s1600/Distortion%2Bcan%2Bbe%2Baverted%2Bor%2Bminimized%2Bby%2Btechniques%2Bthat%2Bdefeat%2B-%2Bor%2Buse%2Bconstructively%2B-%2Bthe%2Beffects%2Bof%2Bheating%2Band%2Bcooling%2Bcycle..gif" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Master-the-Art-of-Welding-Distortion-Control-with-These-13-Practical-Ways-Part-2" border="0" src="http://1.bp.blogspot.com/-vTD8T9iqlIo/Vjxscpo3gJI/AAAAAAAACac/S111CcAdhNw/s1600/Distortion%2Bcan%2Bbe%2Baverted%2Bor%2Bminimized%2Bby%2Btechniques%2Bthat%2Bdefeat%2B-%2Bor%2Buse%2Bconstructively%2B-%2Bthe%2Beffects%2Bof%2Bheating%2Band%2Bcooling%2Bcycle..gif" title="backstep-welding-and-presetting-parts-help-control-welding-distortion" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;"><i>Figure 1: Distortion can be averted or minimized by techniques that defeat - or use constructively - the effects of heating and cooling cycle.</i></span></td></tr>
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<b><span style="color: #cc0000;">7.<span style="white-space: pre;"> </span>Anticipate shrinkage forces</span></b></h4>
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Presetting parts before welding can make shrinkage do constructive work. Some assemblies preset in this fashion are shown in Figure 1 (h). The amount of preset required for shrinkage to pull plates into alignment can be decided from some trial welds. </div>
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Pre-bending, pre-setting or pre-springing the parts to be welded is simple example of using the opposing mechanical forces to counteract welding distortion. The top of weld groove that will contain the bulk of weld metal is lengthened as the plates are present. Hence, the completed weld, if having been made on the flat plate, is slightly longer than it would be. When the clamps are released after welding, the plates come back to the flat shape, enabling the weld to relieve its longitudinal shrinkage stresses by shortening to the straight line. The 2 actions coincide and the welded plates would assume the desired flatness. </div>
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Another common practice to balance shrinkage forces is to position the identical weldments back to back, clamping them tightly together. The welds are completed on both assemblies and cooled before the clamps are released. Pre-bending can be combined with this method by inserting the wedges at suitable positions between the parts prior to clamping. </div>
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In heavy weldments, the rigidity of members and their arrangement related to each other may give the balancing forces needed. If there don’t present those natural balancing forces, using other means to counteract shrinkage forces in the weld metal is needed. This can be made by balancing one shrinkage force against another, or by creating an opposing force through fixturing. The opposing forces may be other shrinkage forces, restraining forces imposed by jigs, clamps or fixtures, restraining forces originated from the arrangement of members in the assembly, or the force from the member sag due to gravity. </div>
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For those who are concerned about:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/search/label/pipe%20welding%20mistakes%20and%20preventions" target="_blank"><i>13 Most Common Pipe Welding Mistakes and Best Preventions </i></a></div>
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Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-8596744873665577413.post-46991903140335920612015-10-30T14:01:00.004+07:002015-10-30T14:04:27.381+07:00New Automotive Welding Technology Expected to Create Much Stronger Bond <div style="text-align: justify;">
<b><i>Ohio State University engineering team has developed a new automotive welding technology that creates strong bonds between metals that are formerly ‘un-weldable’. </i></b></div>
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In case you are interested in:</div>
<div style="text-align: justify;">
<a href="http://vietnamwelder.blogspot.com/2015/07/vietnamese-engineers-create-lower-cost-welding-machines-than-same-imports.html" target="_blank"><i>Vietnamese Engineers Create Lower Cost Welding Machines Than Same Imports</i></a></div>
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The engineer team at the Ohio State University announced that they have developed a <b>new welding technology </b>called vaporized foil actuator (VFA) welding, which requires 80% less energy than spot welding but produces bonds 50% stronger. Also, the process creates strong bonds between metals that were weakened by the melting and re-solidification in conventional welding. </div>
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“Materials have gotten stronger, but welds have not. We can design metals with intricate micro-structures, but we destroy the micro-structure when we weld. With our method, materials are shaped and bonded together at the same time, and they actually get stronger”, said Glenn Daehn – professor of materials science and engineering from Ohio State, who helped develop the technique. </div>
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<tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-dms6hYSk5Mc/VjMVUyyH4dI/AAAAAAAACZM/Slbl27Ss1mc/s1600/A%2Bdiagram%2Bdemonstrating%2Bthe%2Bvaporized%2Bfoil%2Bactuator%2Bwelding%2Btechnique.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="235" src="http://2.bp.blogspot.com/-dms6hYSk5Mc/VjMVUyyH4dI/AAAAAAAACZM/Slbl27Ss1mc/s320/A%2Bdiagram%2Bdemonstrating%2Bthe%2Bvaporized%2Bfoil%2Bactuator%2Bwelding%2Btechnique.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;"><i>A diagram demonstrating the vaporized foil actuator welding technique. <span style="text-align: justify;"> (Cr: Glenn Daehn, Courtesy of The Ohio State University).</span> </i></span></td></tr>
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Instead of melting the metal parts like in resistance spot welding, the VFA process allows a short and low-energy electrical pulse to come inside a piece of aluminum foil, availing a high-voltage capacitor bank. When the foil vaporizes, the resulting plasma would mash the metal pieces together, bonding atoms of one metal to the other’s atoms. Viewed under a high-powered microscope, the bond is often characterized by wave patterns where veins of both materials wrap around each other. </div>
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Thus far, the engineers have managed to bond different combinations of aluminum, copper, iron, magnesium, titanium and nickel, and commercial steel and aluminum alloys with the weld regions which are stronger than the base metals. </div>
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<tr><td style="text-align: center;"><a href="http://3.bp.blogspot.com/-WQ50qBVa-Do/VjMUVgy5fcI/AAAAAAAACZA/dDRXchJOVYo/s1600/A%2Bmicroscope%2Bview%2Bof%2Bcopper%2B%2528top%2529%2Bwelded%2Bto%2Btitanium%2B%2528bottom%2529%2Butilizing%2Bthe%2BVFA%2Bwelding%2Btechnique.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="143" src="http://3.bp.blogspot.com/-WQ50qBVa-Do/VjMUVgy5fcI/AAAAAAAACZA/dDRXchJOVYo/s320/A%2Bmicroscope%2Bview%2Bof%2Bcopper%2B%2528top%2529%2Bwelded%2Bto%2Btitanium%2B%2528bottom%2529%2Butilizing%2Bthe%2BVFA%2Bwelding%2Btechnique.png" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;"><i>A microscope view of copper (top) welded to titanium (bottom) utilizing the VFA welding technique (Cr: Glenn Daehn, Courtesy of The Ohio State University).</i></span></td></tr>
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The engineer team now wants to coordinate with manufacturers to further develop the technique, which will be licensed through the Ohio State’s Technology Commercialization Office. </div>
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Anonymousnoreply@blogger.com3