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 12, 2015
Q: I am machining a bearing housing made out of 1045 and I have to plug and weld some cross holes. I am also using gas tungsten arc welding (GTAW) to eliminate a weld that is too large. My problem is that I am getting pinholes in my weld. Is it because I am welding 1018 to 1045? We didn’t machine...
May 7, 2015
No one doubts that welding equipment has advanced to the point where it has greatly improved welding results and productivity when compared to the technology of previous decades. That doesn’t mean that there isn’t room for improvement. Fronius has attempted to address some of GMAW’s shortcomings with its LSC welding platform.
April 9, 2015
Shapiro & Duncan Inc., a third-generation mechanical contractor serving the mid-Atlantic region offers some tips for building an engaged and talented welding team.
April 7, 2015
Jeremy McGrath, a Supercross racer making the transition to off-road truck racing, recently set up a state-of-the-art motorsports welding shop geared toward component builds and repair work. If you’re setting up a motorsports welding and fabrication shop for the first time, there are some vital pieces of equipment that will help you be successful. It’s important to remember that you don’t have to be a renowned off-road truck racer to have a professional-grade motorsports fabrication shop.
March 26, 2015
Understanding the submerged arc welding process, and the overall equipment needs, and selecting the proper wire and flux combination for the application can help an operation realize its full potential.
March 26, 2015
What does it take to make it in this ultracompetitive world where your work is heavily scrutinized, your time is not your own, and all the while you have a driver’s life in your hands? It requires incredible skill, yes, but there are other qualities you must possess and things you must accomplish. To be successful at one of racing’s top teams requires more than just welding ability. It requires an unparalleled dedication to the sport and to your craft. With that dedication, however, sometimes comes sacrifice.
March 16, 2015
Q: How can I inspect/verify welds on painted product without being destructive? Eric D. A: Coatings come in many varieties on fabricated products. Galvanizing, painting, and even oxidizing a weathering steel will have a negative impact on the weld inspection process. For visual inspection, which...
February 19, 2015
Investors worry about how the drop in oil prices will affect the energy boom. The people on the front lines—including the fabricators and pipe welders—don’t seem to be terribly worried. Some even welcome a slight slowdown, because it will give everyone time to catch up.
January 20, 2015
Q: I'm a welding instructor at a steel mill in northwest Indiana. We attended the “Train the Trainer” class at the Hobart Institute of Welding Technology 12 years ago to certify in all positions, limited and unlimited thickness plates with backing, using all shielded metal arc welding (SMAW)...