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.
October 28, 2008 | By Jack Fulcer
Although titanium has a reputation for being difficult to weld, it doesn't have to be problematic. Paying close attention to filler metal selection, cleanness, and use of the shielding gas are three steps to successful GTAW on titanium tube and pipe.
October 28, 2008 | By Professor R. Carlisle "Carl" Smith
Bad welds can be traced back to poor workmanship, poor design, or a little of both.
October 14, 2008 | By John Luck
Metal fabricator Kevin Stone uses gas tungsten arc welding (GTAW) to sculpt massive pieces of art from stainless steel. Read about Stone's creative and technical processes and discover important tips that can improve your stainless steel welding.
October 14, 2008 | By Vicki Bell
Imagine growing up thinking you really have no artistic ability and then taking a class that rekindles childhood interests and blows that belief sky high. Such was the case for jewelry-maker Sherry Moser, whose unique and beautiful creations pay homage to her upbringing and her deep love of her surroundings.
September 30, 2008 | By Marty Rice
Four of 1,000 welders lose their lives each year, and many more are seriously injured because they fail to follow safe welding practices. Welding hobbyists who follow the examples set on television are particularly susceptible to injury. In this article, Marty Rice reflects on moments in his welding career that illustrate the importance of welding safety.
Ultrasonic metal welding, around since the 1950s, has proven itself useful in a variety of industries where joining applications involve thermally conductive materials. While the process does have its disadvantages—joint configurations, thickness limitations, and difficulty welding high-strength materials, to name a few—ultrasonic metal welding has a bright future with the rising popularity of lightweight materials in the automotive and aerospace industries. This overview of the process will outline the principles of ultrasonic metal welding, describe the key weld process parameters, and note a number of process applications.
August 26, 2008 | By Jack Fulcer
Gas tungsten arc welding thin metals can bring up an array of problems. Fortunately, best practices can prevent those problems from occurring in the first place.
August 26, 2008 | By Walter Sperko, P.E.
Communicating the right welding position is vital for any welding application. Otherwise, a welder might find himself welding in positions for which he is not qualified--and that's not a good thing.
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.