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, 2005
Being a good welder often means more than on-the-job performance. Whether it's volunteering to help others or otherwise giving back to one's community, these welders are examples of so many who take their time to give of themselves on the job — and outside the office.
September 13, 2005
The increased use of coated steels has resulted in an intensified search for solutions to the problems posed by joining these materials. High levels of spatter and welding fume, weld porosity, and poor bead shape are common. These problems lead to increased post-weld cleaning costs, reduced quality, greater rework, and an overall reduction in productivity. The right wire size and type, matched with the most appropriate shielding gas, can substantially improve gas metal arc welding (GMAW) performance on galvanized and coated steels.
July 12, 2005
For welding in the 1G position (in which the tube or pipe rotates), solid wire is traditional filler metal. However, metal-cored wire is making headway as an alternative. Metal-cored wire requires no land at the bevel, is more forgiving of welding dirty metal, produces less spatter, and allows travel speeds up to inches per minute.
June 14, 2005
This 11.375-in. blade was forged from 1095 steel; the habaki* is made from 40 percent shibuichi, gold-plated nickel silver seppa, and Damascus tsuba.*See glossary at the end of the article for swordsmithing terms. Photo courtesy of Don Fogg.What is it about forged and polished steel sharpened to an...
May 10, 2005
Gas-shielded flux cored arc welding (FCAW) is known for its high deposition rates and out-of-position welding capability in heavy manufacturing and fabrication applications. In an industry often averse to change, many companies consider their current FCAW practices and equipment as trustworthy family members: always reliable, with no reason to change.
April 11, 2005
Photo courtesy of AlcoTec Wire Corp.Motorcycle- and hot rod-building shows on TV have put welding in a very positive light lately. In fact, Jesse James, the star of Discovery Channel's "Monster Garage," was named the American Welding Society (AWS) Welder of the Year because of his contributions to...
April 11, 2005
Figure 1Orbital gas tungsten arc welding (GTAW) has been used in many industries since its introduction in the 1950s. Developed by the aerospace industry for welding small fittings to tubes, the process was limited by its large power supplies and cumbersome fixtures suited only to workshop...
March 8, 2005
Troy Trepanier stands next to the FastForward Fastback 1967 Mustang®, a project car restored with modifications borrowed from Ford's 2005 concept Mustang. It was made in 18 weeks with parts and accessories found and bought on eBay Motors. Troy Trepanier says his company does all the...
March 8, 2005
Almost every artist blacksmith learns to make small animal heads from rods and often hammers petal-like shapes into flowers. But some 'smiths go far beyond these exercises and make items that are so much larger than life that they fall into the category of expressive sculpture.
February 8, 2005
Experienced welders know that without the right information, it's easy to sacrifice quality, lose time, and generally become frustrated with gas tungsten arc welding (GTAW). And while there is merit in learning by trial and error, if you want to move toward precision GTAW, getting answers to 10...
January 11, 2005
Editor's Note: This article is a companion piece to Marty Rice's article MIG welding—The basics and then some. My first time using MIG (also called gas metal arc welding, GMAW) in the field was working on four stainless steel hoppers (tanks) at an Owens Corning plant. X-rays of the hoppers'...
November 9, 2004
When something breaks, you acknowledge the shock, scratch your head, take stock of the situation, and look for the fastest way to repair the item and put it back into operation. The pressure to repair quickly is understandable, but common sense suggests stopping for a moment and trying to understand what caused the break before attempting the repair.