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 5, 2012
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 2, 2012
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.
September 10, 2012
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
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
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.
July 23, 2012
Author Frank Marlow recently sat down with Practical Welding Today® to discuss his new book, which was released in March.
May 25, 2012
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
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
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.
April 3, 2012
In a 2010 survey from the Fabricators & Manufacturers Association, respondents cited welding as the most sought-after, difficult-to-find technical skill. But at Mitchell's Specialized Fabrication, managers don't look for that experience. They look for someone with a good attitude, eager to learn.
April 3, 2012
Metal-cored wire typically costs more than solid wire, but the benefits often offset the per-unit price. In reality, any consumable comprises a relatively small portion of overall welding costs; in fact, material and labor make up the lion’s share of welding expenditures. But in the right application, an increase in filler metal costs may lead to greater savings elsewhere.