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...
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.
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 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 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.
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.
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.
February 13, 2007
A fabricator of large pressure vessels implements a welding power source to help it meet growing customer demand and ensure stringent quality standards without expanding its work force.
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...
Depending on your application, various components of your shielding gas blend can help or hurt you. Find out what effects shielding gas has on your weld and what you can do to get the best results.
January 9, 2007 | By Mike Sammons
Not every welder uses a gas lens on his or her GTAW torch, but gas lenses should be considered for a variety of applications and for several reasons. Knowing what a gas lens does, how to choose one, and how to install and take care of one are critical to getting the most benefits out of it
January 9, 2007
Wrayco's progression from dedicated welding fixturing to modular fixturing has reduced storage space and maintenance, created faster setups for critical prototypes and quick-turn projects, and improved quality control.
December 12, 2006 | By Stephanie Vaughan
Plasma arc welding (PAW) is very similar to gas tungsten arc welding (GTAW), but its highly concentrated arc makes it very different - and not necessarily the best process for every application. A close look at its characteristics and equipment will help you decide if it's right for your applications.
One form of hybrid welding combines both GMAW with a GTAW process in a welding torch. An electronic interface unit containing a plasma power supply controls the hybrid process. Research has indicated that such an approach to welding leads to faster welding times, deep penetration, and cleaner welds when compared with conventional GMAW technology.
November 7, 2006 | By Stephanie Vaughan
Of all the fabrication tools necessary to build -- and repair -- race cars, welding equipment is one of the most essential. To keep a race car together, safe for drivers, and at its competitive best, welding and metallurgy come into play every day in the motorsports industry.