Practical Welding Today®

September/October 2008

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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Selected articles from the September/October 2008 issue available online:

Aluminum Workshop: Clearing up oxide misconceptions

December 8, 2014


Q: My company welds 6063 tubing using AC gas tungsten arc welding (GTAW) with 4043 filler metal and pure argon shielding gas. Appearance is important. How can we eliminate, or at least minimize, the oxidized area on each side of the weld? A: We need to first clear up a misconception. The area you...

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Arc Welding 101: Tackling trailer troubles

October 21, 2014


Q: A routine preventive maintenance inspection on a steel flatbed trailer revealed cracking in the main frame beams. The trailer was purchased through a distributor, so it was returned the next day. We asked the manufacturer to send a qualified representative to inspect it and send us a proposal...

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Safety signs

Safety update

October 28, 2008


A little more than a year after implementing stricter hexavalent chromium standards to the metalworking industry, OSHA has gone a step further and released respirator fit testing guidelines to complement the existing standard.

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Robotic welder

Don't be marginalized

October 14, 2008


Peripheral equipment for robotic welding can help maximize the effectiveness of an automated workcell and protect the investment from costly damages. Understanding peripheral equipment is the first step in getting the most out of a robotic workcell.

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Understanding ultrasonic welding

September 30, 2008

By: ,

Ultrasonic metal welding, around since the 1950s, has proven itself useful in a variety of industries where joining applications involve thermally conductive materials. While the process does have its disadvantages—joint configurations, thickness limitations, and difficulty welding high-strength materials, to name a few—ultrasonic metal welding has a bright future with the rising popularity of lightweight materials in the automotive and aerospace industries. This overview of the process will outline the principles of ultrasonic metal welding, describe the key weld process parameters, and note a number of process applications.

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Pulsed GTAW waveform diagram

Robotic GTAW

September 16, 2008


Robotic GTAW is a little-known process that has made significant advancements recently, thanks in part to the advancements made to manual GTAW that have made it more user-friendly and compatible with the environment. Applications that were once nearly impossible to accomplish can be handled with relative ease with modern GTAW systems. Even today robotic GTAW continues to improve and advance into new fields to create a better future for the welding industry.

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