Arc Welding Articles

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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Autogenous orbital GTAW of large, high-purity tubes - TheFabricator

Autogenous orbital GTAW of large, high-purity tubes

July 15, 2010

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Autogenous orbital welding on large projects has become nearly routine with large numbers of successful welds completed with very low reject rates. Thus it is very easy to become complacent. However, installers need to be alert to potential problems and take immediate action when a problem occurs.

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Prioritzing U.S. infrastructure needs

June 11, 2010

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Author and co-founder of New America Foundation gives his insights regarding the U.S.'s crumbling infrastructure and provides tangible ways the federal government can address the situation.

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welded clock

Building a stronger welding program

June 7, 2010

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Bellingham Technical College launched its Welding Rodeo in 2002 to spur enrollment and raise its public profile. Now one of the premier welding competitions in the Pacific Northwest, the event has helped the school triple its enrollment in welding and expand its program/skill offerings.

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High-frequency electric resistance welding: An overview - TheFabricator

High-frequency electric resistance welding: An overview

June 1, 2010

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Architects and engineers are designing structures with new and innovative shapes. To meet these ever-changing requirements, manufacturers may turn to solid-state, high-frequency electric resistance welding (HF ERW) to produce engineered structural sections at high speeds with unlimited beam profiles, better structural performance, and with lighter weights.

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Wire welding in the structural steel world - TheFabricator

Wire welding in the structural steel world

June 1, 2010

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Many structural steel fabricators are loyal to shielded metal arc welding (SMAW). But technology advancements in the wire feed process known as flux-cored arc welding (FCAW), paired with an increasingly competitive market, have changed the landscape of structural steel environments, and by extension the opinions of the most loyal SMAW users.

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single arc saw - twin wire

Improving productivity with submerged arc welding

May 25, 2010

Submerged arc welding (SAW) can be performed in various ways, from the simplest process using a single wire and DC power to more advanced twin-wire and tandem operations. Choosing the right SAW process for your operation can help you increase deposition rates and productivity.

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orbital welding electronics

We've come a long way, baby

May 5, 2010

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The orbital welding process has seen significant advancements in electronic control technology that have helped open the door to a wider array of applications while making it more cost effective to use.

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ultra international

Teaming up to clean up

May 4, 2010

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Like many companies, Ultra Machine and Fabrication Inc., Shelby, N.C., a fabricator of armored military vehicles, believed the welders should clean up their own weldments for spatter, slag, and other discontinuities. But when welders were spending less and less time under the hood, Ultra re-evaluated this philosophy and, as a result, implemented a separate postweld cleaning team.

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right filler metal

Welding metals of dissimilar strengths

April 30, 2010

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Welding metals of dissimilar strengths requires that a welder consider some specific factors, to ensure a solid joint.

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butt joint geometry joining

Welding thin with GMAW

April 1, 2010

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A unique method of metal transfer allows gas metal arc welding to tackle thin-gauge and cosmetically sensitive workpieces.

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welding minimal distortion

Pulsed GTAW for stainless steel

April 1, 2010

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Some welders swear that stainless steel warps if you just look at it wrong. This is an exaggeration, but it does reflect the metal's low rate of thermal conductivity, which causes the input heat to remain localized; localized heating and cooling promotes distortion. Adding more heat doesn't...

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high carbon steel preheat

Beyond low-carbon steel

March 1, 2010

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When welders tackle new materials, weldability should always be on their radar. Certain alloys aren't so kind to the welding gun.

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p and h mining

Tons of reasons for a new welding positioner

February 9, 2010

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P&H Mining equipment, Milwaukee, Wis., makes very large equipment, such as its largest electric shovel that weighs 1,200 tons. Shovel components keep getting larger, and to keep up with the market trends, the company needed a new welding positioner. That's a "big" deal in every sense of the word. Luckily, Koike Aronson Inc./Ransome was able to help.

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electrode good welding practices

Holding back the hydrogen

January 15, 2010

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Hydrogen cracking can send a project off schedule in a hurry. Here are ways to prevent it.

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gmaw guns consumables

GMAW guns and consumables

January 6, 2010

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Think GMAW guns and consumables don't have an impact on your final weld? Think again. By separating the myths surrounding GMAW guns and their consumables from the facts, you can ensure you're not compromising performance or weld integrity.

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