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.
June 7, 2010
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.
June 1, 2010
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.
June 1, 2010
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.
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.
May 4, 2010
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.
April 1, 2010
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...
February 9, 2010
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.
January 6, 2010
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.
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.