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.
July 29, 2008 | By Steven Rainwater
Submerged arc welding (SAW) is so named because the weld and arc zone are submerged beneath a blanket of flux. The flux material becomes conductive when it is molten, creating a path for the current to pass between the electrode and the workpiece. The flux blanket prevents spatter and sparks, while...
July 29, 2008 | By Marty Rice
"Welder wanted" signs abound in many areas of the U.S., and welding instructor Marty Rice believes there's never been a better time to pursue a welding career. How do you make your welding career the best it can be? Following certain guidelines can help.
July 29, 2008
A Florida company specializing in underwater inspection, maintenance, and repair of deep sea vessels needs reliable, safe, and portable equipment to ensure that the job can be done anywhere in the world.
July 15, 2008 | By Vicki Bell
Few people are lucky enough to turn their hobbies and passions into a satisfying and lucrative career. Even fewer have the opportunity to create a lasting legacy of historical proportions. One individual working under a canopy at historic Jamestown is doing both. Bravo, Bob Williams.
June 17, 2008 | By Bill Giese
When MIG welding, are you experiencing an erratic, sputtering arc; a gradual need to increase voltage at the power source; discoloration of copper cable strands or the liner; increased contact tip burnbacks; or inconsistent weld appearance? If so, your problem could be poor conductivity caused by electrical resistance.
When welding a chromium-molybdenum alloy, selecting the optimal filler wire is critical to the long-term durability of the weld. Fortunately, matching the filler metal to the alloy is no more difficult than it is for matching a filler metal to any other family of alloys. Understanding the chemical and mechanical properties of the materials can go a long way in making strong, corrosion- and creep-resistant welds.
June 17, 2008 | By Bill Giese
Being able to quickly and accurately identify the source of GMAW consumable problems will save you both money and frustration.
May 13, 2008 | By Ernest A. Benway
AWS predicts that by 2010, the demand for skilled welders will outstrip supply by 200,000. One means of addressing the shortage is through automated systems, such as automatic orbital GTAW units, which have gained favor in a variety of industries. But that does not diminish the requirement for an educated and well-trained work force. Automation requires more training, not less. That is why it is essential to be trained in basic welding procedures in addition to operating automated welding equipment.
May 13, 2008 | By Amanda Carlson
Brennan Palmiter may look like an ordinary teenager, but behind the youthful grin is an incredibly driven16-year-old who has his sights set on a career in racing and welding.
May 13, 2008 | By Marty Rice
In his extensive career as a welder and welding instructor, Marty Rice has learned a thing or two about the qualities companies look for in their employees beyond skill proficiency. This anecdotal article discusses these qualities and their importance from Rice's perspective.
April 15, 2008 | By Jim Cuhel
Many fabrication shops that do a lot of stainless steel tube and pipe welding are in a bit of trouble these days. The problem isn't a lack of work, of course—it's a matter of trying to handle too much work with too few resources (skilled welders). They can ask their fabricators to work harder or faster, but that goes only so far. Can a new technology help them get more output from their existing employee base?
April 15, 2008 | By Tim Heston
A new grant program promotes education for the welding technician. The program focuses more on welding theory behind the various processes--and less on hands-on training.
March 11, 2008 | By Tim Heston
Today several companies offer technologies that help beginning welders get that hand motion just right. None claims that the technology will replace the real thing, of course, but they do say that training in the virtual world can give students a significant leg up by the time they weld for the first time. It helps teach students what really happens between the welding arc and workpiece, why certain hand motions produce good beads while other motions don't. And it also may help introduce welding to students who wouldn't have given the trade a second thought.
A new resource tool takes away the guesswork and the apprehension when welding titanium: The American Welding Society (AWS) D1.9/D1.9M Structural Welding Code—Titanium. Released in July 2007, the code goes beyond the limitations of previous documents by providing the information required to engineer a structural titanium product from start to finish.
March 11, 2008 | By Marty Rice
Think you want to learn TIG welding, also known as GTAW? To master the craft and avoid injury, it's imperative that you receive proper instruction. TIG is not a process that lends itself to self-teaching. This overview compares TIG with other welding processes and outlines some important steps of the process.