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 10, 2007 | By Mike Crawford
Using SMAW can be just as complicated for the hobbyist as it is for the professional welder. Answering common questions about electrode classification, capability, and how each differs from one another can help ensure success.
July 10, 2007 | By Professor R. Carlisle "Carl" Smith
Becoming a skilled welder involves both hands-on and technical training from secondary and postsecondary instruction. Who should teach what and when to ensure that today's welders have the necessary skills? Longtime welder and welding professor Carl Smith shares his views.
July 10, 2007 | By Elia Levi
Welding can be a rewarding career. To be successful and satisfied in welding or any career requires planning, preparation, and pursuing a job you love. This article provides an overview of welding as a career, describes different opportunities, and lists resources that can help you to become a welder.
June 12, 2007 | By Dean C. Phillips
As manufacturers strive for lower costs and greater efficiencies, they tend to substitute high-strength materials for standard materials. One such high-strength material is ASTM A514/514M-05. Although it is not difficult to weld, joining it successfully requires paying close attention to the preheat temperature, interpass temperature, and filler metal.
May 22, 2007 | By Phil Evans
The prices of materials consumed in your welding shop aren't the only materials-related economic considerations. How you use those materials affects the bottom line. Monitoring compressed-gas usage and looking for areas of waste can improve your shop's financial picture. This article offers practical suggestions for reducing waste.
May 8, 2007 | By Paul Cameron
Q: I am building a 400-gallon paint tank and I'm having trouble with leaks when using gas metal arc welding (GMAW). I'm using a welding machine running on 440. My best results come when running hot 19.5 on the heat and about 21/2 on wire speed. I am using a trimix gas and 0.035-inch 308 wire. The...
May 8, 2007
A mechanical contractor that fabricates carbon steel water pipe addressed its need for welders, as well as a bottleneck situation originating at its welding station, by converting from shielded metal arc welding (SMAW) to gas metal arc welding (GMAW).
May 8, 2007 | By Steve Barhorst
Metal-cored wire isn't suitable for all welding, but used in appropriate applications, the wire can help improve quality and reduce rework. Some industries best-suited to using metal-cored wire are automotive exhaust and chassis manufacturing, agricultural and heavy equipment manufacturing, and railcar fabrication. This article discusses the wire's properties and how to determine if it is suitable for your operation.
April 10, 2007 | By Vicki Bell
Recent SCAD graduate David Creamer creates beautiful, unique jewelry, including pieces inspired by objects many might find anything but inspirational. This article discusses Creamer's views on materials and describes the process he used to create a provocative bracelet that represents societal elements.
April 10, 2007 | By Mike Sammons
Joining austenitic stainless steel with GTAW can be tricky, but with a little preparation and care, it can be done successfully. The three main factors are having the right amount of heat input, travel speed, and a shielding gas.
April 10, 2007 | By Amanda Carlson
A Tennessee artist and welder uses scrap metal parts to create one-of-a-kind metal sculptures.
April 10, 2007 | By Elia Levi
Certain metal combinations cannot be joined successfully with fusion welding. Deciding how to join them requires examining options, including potential material substitutions and process possibilities. This article discusses these options and offers a blueprint for the best solution.
March 13, 2007 | By Myron T. Havis
It is important to be able to identify when brazing is suitable for joining copper or copper alloys, how it is applied, and which filler metals to use.
March 13, 2007 | By Sue DiBianca
With the recent increases in gasoline and natural gas prices, more attention than ever is focused on alternative energy sources. One fabricator, Aerisyn LLC, investigated manufacturing towers for use in the wind power industry. To produce towers efficiently enough to compete against imports from Asia, Aerisyn relied on an equipment vendor that had experience in demanding fields such as aerospace, nuclear, and wind power.
February 13, 2007 | By Paul Cameron
Q: We are welding 1018 cold-rolled, 2.5-inch-diameter shaft to a sprocket made from 1045 steel. We preheat the shafts to about 200 to 250 degrees. We are having some failure of the shaft, and I'm wondering what the proper procedure is for welding the assembly together. The sprockets are welded...