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.
May 3, 2013
The U.S. Navy has been searching for new weld-repair methods on its aluminum-hulled ships beyond dry docking, which is impractical and costly. Phoenix Intl., an underwater services company that has held the Navy’s Diving Services contract for the past 15 years, may have found one: underwater aluminum GMAW in a hyperbaric chamber.
May 1, 2013
ESAB Welding & Cutting Products has introduced Heliarc® AC/DC GTAW and SMAW machines. Three new GTAW models are offered: the 281i, a 280-amp unit for single-phase 230 connections; the 283i, a 280-amp unit for three-phase 460 connections; and the 353i, a 350-amp, three-phase 460 unit for...
May 1, 2013
Global diversified manufacturer Handy & Harman Ltd., White Plains, N.Y., has announced that Lucas-Milhaupt Inc., Milwaukee, an indirect wholly owned subsidiary, has acquired the assets of Wolverine Joining Technologies, Warwick. R.I., a wholly owned subsidiary of Wolverine Tube. The acquired...
April 23, 2013
Tri-Mix (color code chartreuse) and 2 percent lanthanated (color code blue) tungsten electrodes are available from CK Worldwide. The Tri-Mix nonradioactive electrodes (A5.12M/A5.12:2009-AWS Class EWG) can be used in both AC and DC GTAW applications. Comprising 98.34 percent tungsten, 1.5...
April 22, 2013
RealWeld Systems Inc. has announced that its patent-pending RealWeld Trainer™ system will support welding of 18-in. joints, which meets or exceeds the test requirements of the AWS B2 specification for plate welding. The system, designed for a welding booth, can be used while under the hood with...
April 22, 2013
Swagelok Co. has introduced the Swagelok® M200 portable calibration unit, designed to provide on-site orbital welding power supply maintenance. The unit allows for immediate calibration of a Swagelok welding system M200 power supply. Portable calibration helps minimize downtime, which is...
April 19, 2013
Chronic exposure to manganese oxide fumes, which occur when manganese metal is heated and reacts with oxygen, can lead to damage to the central nervous system. Welders are especially susceptible to this disease, called maganism by the National Institutes of Health, because manganese is found in many welding rods and filler metals to promote hardness. The American Conference of Governmental Industrial Hygienists recently issued guidance that dramatically reduced suggested threshold limit values. Because many metal fabricators use this guidance to manage worker exposure, they now are having to rethink how they approach personal protective equipment.
April 19, 2013
Submerged arc welding is known as a process that can result in high welding speeds and deposition rates. However, in today's manufacturing reality, engineers are always looking to boost productivity—even for already productive processes. Fortunately, companies have three common approaches to consider to increase the performance of their submerged arc welding systems.
April 18, 2013
The Harris Products Group manufacturing facility in Gainesville, Ga., has earned a statewide environmental award for its efforts to reduce all types of waste and prevent water pollution. The Georgia Association of Water Professionals has recognized the company with its Water Pollution...
April 17, 2013
A shop is only as productive as its constraint process—that is, its bottleneck. All that adaptability in upstream processes may not make a part cost less if it takes days or weeks to build a new weld fixture. A modular approach to weld fixturing can help.
April 16, 2013
Mississippi metal artist Stephanie Dwyer never knew she was an artist until she relocated from Washington and began building bottle trees. Today her bottle trees can be found all over the U.S., which has led to opportunities in custom metal art fabrication.
April 1, 2013
Thermacut has introduced three new welding chemical products: a heavy-duty antispatter and two glycol-based cooling fluids. The nonflammable, solvent-based antispatter evaporates quickly to provide an effective surface coating. By preventing spatter buildup in welding applications, the antispatter...
March 25, 2013
Alex Pazkowski of Saline, Mich., a student at Washtenaw Community College in Ann Arbor, Mich., will represent the U.S. in Leipzig, Germany, in the welding competition during the biennial WorldSkills Competition, July 2-7, 2013. A member of SkillsUSA, the Leesburg, Va., organization that represents...