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.
November 14, 2012 | By Marty Rice
In this, his last TIG article, ever, welding instructor Marty Rice offers some advice for the home hobbyist about buying equipment and shielding gas.
November 5, 2012 | By Randy Dull
Shielding gases do more than just protect the weld from atmospheric contamination. The gas and gas blends you use also influence the weld profile and the weld bead shape. Also, for an arc to occur in gas metal arc welding (GMAW), an ionized gas must be present to carry the charge.
November 5, 2012 | By Amanda Carlson
When he’s not TIG welding at his “normal” job, career welder and metal artist Roger King uses his skills with a TIG torch to create metal sculptures.
November 2, 2012 | By Amanda Carlson
Super Bowl XLVI in Indianapolis earlier this year featured athletic prowess and classic gridiron toughness with a little speed and finesse. But also on display outside the stadium throughout the heart of downtown was a combination of strength and artistic flair that only a metal art sculpture can provide.
October 23, 2012 | By Dan Davis
A truly remote-controlled foot pedal for TIG welding sounds like the perfect tool for job site fabricators, but welders that work in a small cell are also finding advantages associated with cutting the welding control cord.
September 10, 2012 | By John Glessman
Portable calibration units allow you to perform quality assurance maintenance themselves by calibrating critical welding variables on-site. These remote servicing capabilities bring support closer to the jobsite, improving the uptime and functionality of the power supply and eliminating the need to send it off-site for calibration.
September 10, 2012 | By Jason Ladd
The concepts of positioning are the same for all weldments, large or small. A properly positioned weldment, regardless of the size, reduces welder fatigue, increases safety, improves weld quality, and saves on production floor space.
August 3, 2012 | By Eric Lundin
After working for a few years making leather belts and belt buckles, Anthony “AJ” Patti moved on to designing and manufacturing leather goods for Harley-Davidson, then went on to pewter casting to make jewelry for the venerable motorcycle manufacturer. An artist always striving for efficiency and mass production, Patti’s latest venture is making sculptures and adornments for gardens.
Welding novices might be confused by terminology commonly used by fellow welders but not found in standard glossaries. This article defines some of these terms used in shielded metal arc welding.
July 23, 2012 | By Amanda Carlson
Author Frank Marlow recently sat down with Practical Welding Today® to discuss his new book, which was released in March.
July 16, 2012 | By Phil Evans
The major cause of a crack is when internal stresses exceed the strength of the weld metal, the base metal, or both. Knowing the basics behind why cracks happen, a welder can prevent those cracks from occurring in the first place.
July 10, 2012 | By Amanda Carlson
Jaime Shaker, head instructor at Calumet Welding Center, is driven and tough. His goal is to push each student to strive for excellence and reject the notion that good enough is good enough.
May 25, 2012 | By Amanda Carlson
The push for lighter, corrosion-resistant components has brought aluminum to the forefront of the minds of traditional steel fabricators. Those that approach the material the same as steel often run into weld quality issues that can prove costly. But those who are committed to putting together a topnotch, aluminum-friendly system before striking an arc—from equipment and setup to material preparation and welder education—are better equipped to find success afterward.
April 16, 2012 | By Tim Heston
A career in code-level welding involves an odd concoction of hands-on work, excellent hand-eye coordination, on-the-job focus, and a dash of lawyerlike thinking. Some can be loud extroverts who get the most attention, but others can be quiet introverts. Many share a dedication to the welding craft, and the best strive to do the job right the first time.
April 11, 2012 | By Brent Williams
Cup walking, a tube or pipe gas tungsten arc welding (GTAW) technique suitable for some stainless steels, can improve weld quality. The method involves resting the torch’s cup on the workpiece and making a weaving motion across the weld joint. Used properly, it also reduces operator fatigue and can improve weld speeds.