Arc Welding

The arc welding technology area focuses on the most commonly used arc welding processes, mainly GMAW/MIG, GTAW/TIG, SMAW/stick, and plasma. The articles and press releases cover processes and power sources, plus all of the related items—electrodes and wire, wire feeders, fixtures, manipulators, positioners, and power sources. If you need information on personal protective gear, ventilation systems, and safety practices for welders, see our Safety coverage area.

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Lincoln Electric appoints VP, deputy general counsel

July 30, 2014

The Lincoln Electric Co., a subsidiary of Lincoln Electric Holdings Inc., Cleveland, has named Jennifer Ansberry as vice president, deputy general counsel. Ansberry's role as deputy general counsel has been extended to include leadership of the company's environmental, health, and safety (EH&S)...

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Colors in welds and what they mean

July 24, 2014

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The variety of colors that can occur in welds might surprise you. Sometimes they are desirable and sometimes not. It all depends on the material, the industry, and the application.

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Power sources, interface controls designed for SAW, ESW

July 23, 2014

Miller Electric Mfg. Co.’s new SubArc Digital series of power sources, interface controls, and accessories includes digital control and communication electronics designed to help improve weld performance and simplify equipment integration in advanced applications. The product line includes...

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Success breeds success as hardbanding service provider evolves into equipment vendor

July 21, 2014

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When Dave Milo set out to build a portable hardbanding unit, the former trucking company owner knew little about welding and nothing about hardbanding. After updating the hardbanding unit design a few times with consulting help from Lincoln Electric, Milo thinks he’s ready to change direction. Rather than providing hardbanding services, his goal is to sell hardbanding machines.

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Victor announces 2014 student cutting and welding contest

July 16, 2014

Victor Technologies™, St. Louis, will award more than $30,000 in equipment and cash prizes as part of its 2014 “A Cut Above” student contest. The contest is open to students in cutting, welding, and related programs at secondary and postsecondary schools. Three beginner students will each...

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ESAB website landing page highlights iconic welding projects

July 16, 2014

ESAB Welding & Cutting Products, Florence, S.C., showcases its most iconic welding and cutting projects with the launch of its “Iconic Stories” landing page at www.esab.com/iconic. The landing page uses video to demonstrate how ESAB is at the core of projects around the globe, from sports...

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Consumables Corner: Examining weld cracking, Part II—Stress, hydrogen cracking

July 16, 2014

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Editor’s Note: This is the second column in a two-part series. Q: I work in a midsized job shop, and we weld with the FCAW, GMAW, and SMAW processes. Occasionally we encounter weld cracking issues. What causes weld cracking, and what can I do to prevent it? A: Stress cracking is similar to hot...

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Consumables Corner: Examining weld cracking, Part I—Hot cracking

July 15, 2014

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Editor’s Note: This is the first article of a two-part series. Q: I work in a midsized job shop, and we weld with the FCAW, GMAW, and SMAW processes. Occasionally we encounter weld cracking issues. What causes weld cracking, and what can I do to prevent it? A: To ensure that the measures you...

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Training your off hand for TIG welding

July 10, 2014

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"The world has enough one-handed welders."

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Stud welder runs on 120-V, single-phase power

July 10, 2014

Nelson Stud Welding has introduced the N550c Arc Charger. Its input charger system converts the 120-V wall outlet power into digitally controlled stored energy for welding studs up to 0.375 in. dia. The portable unit can run off a small 5-kW generator, allowing fastening in remote places. Its...

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Hope dies last

July 9, 2014

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A hard-nosed welding instructor at a medium-security prison in rural North Carolina gives his students discipline, confidence, a foot in the door to a trade, and the possibility for a new life upon release.

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Consumables Corner: Selecting the correct diameter for flux-cored wire

July 9, 2014

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I work in a large manufacturing fabrication shop where we weld subassemblies and then fit and weld them together to complete the machines we manufacture. Currently we use gas-shielded, flux-cored wires from 0.045 to 0.09375 in. in diameter. At what point is a small-diameter wire too inefficient,...

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Consumables Corner: Combating overheating in work clamps

July 8, 2014

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Q: I weld in a large pressure vessel shop and use many welding processes, including SMAW, GMAW, FCAW, and SAW. Regardless of the process, our work clamps always get very hot. We’ve even had some arcing from the ground clamp. We have welded several grounds to the workpiece to remedy this problem,...

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Consumables Corner: Combating dull weld appearance with metal-cored stainless steel wire

July 7, 2014

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Q: We fabricate 401 stainless steel components and have considered using metal-cored stainless steel consumables. One of the issues with metal-cored consumables is the dull appearance of the weld compared to the appearance achieved with a solid wire. What can we do to maintain a clean or shiny...

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Consumables for high-amperage welding

July 7, 2014

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High-amperage welding, whether in semiautomatic or robotic applications, pust a great amount of stress on welding consumables. By following a few tips, however, a welder can extend the life of these components.

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