Practical Welding Today® was created to fill a void in the industry for hands-on information, real-world applications, and down-to-earth advice for welders. No other welding magazine fills the need for this kind of practical information. Subscriptions are free to qualified welding professionals in North America.
More Info Subscribe Free
November 25, 2014
Q: I’m welding aluminum plate and extrusions of various alloys using both GTAW and GMAW. Sometimes I encounter what seems to be arc blow while welding, mostly with GMAW. But since aluminum isn’t magnetic, arc blow shouldn’t be possible. Is it something else? If so, what? A: This is a common...
June 27, 2014
Q: I work for a structural steel fabricator and we are getting ready to start work on a bridge job that specifies A588 material. We have worked on this material in the past using a weathering-grade filler metal. Our engineer has recommended we use a 1 percent nickel electrode. Is this right? A:...
May 8, 2014
Q: I know of welding manufacturing companies that do not use welding procedure specifications (WPS), their welders are not qualified, and their welders inspect their own welds! How can these companies get away with this? Nelson M. A: I have been in many fab shops that lack documentation on...
July 20, 2011
Resistance welding transformers generate a lot of heat, which is why most of them are designed to be water-cooled. But when condensation forms internally as a result of an improperly set chiller temperature, a number of catastrophic issues can arise. To avoid this, it's best to understand what causes internal condensation and how you can prevent it.
July 8, 2011
Today's job shops must be prepared to deal with a variety of materials for fabrication and welding. As each material may require a different mixed shielding gas for gas metal arc welding (GMAW), familiarize yourself with these gases and the most efficient supply methods for various applications.