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.
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November 7, 2014
Q: I have a small shop at my home and would like to add a piece of welding equipment to increase my capabilities to weld aluminum. But, I’m confused. I don’t know whether to buy a gas tungsten arc welding (GTAW) machine or a gas metal arc welding (GMAW) machine. Any suggestions? A: In general,...
June 19, 2014
Q: Our shop manufactures bridge and structural steel components. Most of the material is A36 or A572 and welded with E70X-X class electrodes using FCAW with 75 percent Ar/25 percent CO2 shielding gas (bottle-supplied) and SAW. We're having issues with porosity in our SAW process. We find that once...
April 21, 2014
Instead of a Q&A column this issue, we’re going to talk PPE and hygiene. The idea was inspired by my wife Dianne, who bought me an issue of Esquire magazine before our trip to Oregon. She was adamant that I read it, so finally I picked it up. Among the advertisements for men’s fragrances,...
March 24, 2014
Fume extraction guns are a viable alternative for collecting harmful welding fumes and particulate right at the source. They can be used in tandem with another source-capture device or with a localized filtration system. Knowing how they work and how to use them will help yield the best results.
March 19, 2014
Oxyacetylene brazing is a simple yet effective metal joining method that produces sound, leakproof connections. The process is simple to perform, does not melt or distort the base metals, and allows for increased tolerance control. Make sure you are familiar with the common brazing alloys, how to prepare base metal and fittings, and navigate through pitfalls to ensure optimal results.
March 10, 2014
SMAW electrodes are magnets for moisture if they aren’t properly stored, maintained, or handled. Moisture—hydrogen—can ultimately lead to cracks when deposited into the weld puddle. You can minimize moisture pickup with proper electrode storage and handling procedures to ensure that consumables operate at optimal levels.