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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Wire welding in the structural steel world - TheFabricator

Wire welding in the structural steel world

June 1, 2010 | By Amanda Carlson

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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High-frequency electric resistance welding: An overview - TheFabricator

High-frequency electric resistance welding: An overview

June 1, 2010 | By Jeff Pierson, Mike DiDonato

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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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 | By Bill Bonow

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 | By Amanda Carlson

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 | By Dean C. Phillips

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

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welding minimal distortion

Pulsed GTAW for stainless steel

April 1, 2010 | By Kirk Webb, Mark Kadlec, Brad Hemmert

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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butt joint geometry joining

Welding thin with GMAW

April 1, 2010 | By Wesley Doneth

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

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high carbon steel preheat

Beyond low-carbon steel

March 1, 2010 | By Mike Barrett

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 | By Dan Davis

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 | By Tim Heston

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

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gateway energy coke company

No purge, no problem

January 6, 2010 | By David Lucas

Although P91 offers many advantages for power generation in terms of strength and service life, it is more difficult to fabricate than traditional materials and many contractors shy away from it. Icon Mechanical, Granite City, Ill., is one such contractor. However, a chance to do some work on an energy system provided an opportunity to explore the potential of a nontraditional welding method that turned out to work well on P91.

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gmaw guns consumables

GMAW guns and consumables

January 6, 2010 | By Andy Monk

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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induction heating system pro heat

Induction system speeds pipe welding projects

December 1, 2009

Energy Steel & Supply Co., Lapeer, Mich., a fabricator that manufactures components for nuclear power plants, used to spend quite a bit of time on pre- and postweld heat treatment. After seeing a demonstration of an induction heating system, the company made the switch and enjoys the benefits of a faster, safer way to deliver heat to the components it manufactures.

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GMAW Push Button

One size does not fit all

November 24, 2009 | By Nick Peterson

Fewer skilled welders combined with an ever-increasing range of welding applications have created a demand for more precise, application-specific welding systems. Equipment suppliers now are tailoring systems for different applications, and fabricators are embracing the new technology.

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