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.
September 13, 2010 | By Jeff Grivas
Every welder is likely familiar with fabricating a fixture for a job, but only a select few work on fixtures for very large weldments. Those unfamiliar with large fixture-making may be surprised to learn about
August 4, 2010 | By John Glessman
Automatic orbital gas tungsten arc welding is used in a variety of industries in which maximum leak integrity, high performance, or ultra-cleanliness is important. Automatic orbital welding provides enhanced precision and reliability compared to manual techniques. Small, portable inverter power supplies, advanced control systems, and other advancements have made orbital welding systems practical for a range of applications.
July 16, 2010 | By Amanda Carlson
Thanks to a specific vision and a high-end equipment purchase, C.F. Roark Welding & Engineering Co. Inc. is anything but ordinary. Founded in 1949, the company specializes in electron beam (EB) welding of complex, specialty parts and components for the aerospace, defense, and research industries. In a short amount of time it has carved a niche as the premier EB welding firm of the Midwest.
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.
June 11, 2010 | By Amanda Carlson
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.
June 7, 2010 | By Don Knight
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.
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 | 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.
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 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.
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.
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.
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.
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...
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.