Paul Cameron

CWI, Welding Specialist
Element Materials Technology
662 Cromwell Ave.
St Paul, MN 55144


Phone: 507-269-7142
www.element.com
Contact via email

Arc Welding 101: Passing a weld test

April 23, 2014

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Q: Why do good welders fail weld tests? Anonymous A: Sometime around 1981, when unemployment rates were near 9 percent and after I had moved around from one bad job to another, I was given the opportunity to take the welder qualification test at Cyde Iron Works in Duluth, Minn. Passing the test...

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Arc Welding 101: Use and identify tungsten electrodes correctly

April 22, 2014

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Q: Can you tell me how to identify tungsten after the paint is worn off? Anonymous A: The two most common processes that use a nonconsumable tungsten electrode are gas tungsten arc welding (GTAW) and plasma arc welding (PAW). These electrodes come in a variety of compositions or alloys, and...

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Arc Welding 101: Short-circuit MIG not prequalified in AWS D1.1? No problem …

April 21, 2014

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Q: The company I work for welds with GMAW-S, and all of the weld procedure specifications (WPS) that we have are from prequalified AWS D1.1 welds. When I look in D1.1, I find that GMAW-S is not a prequalified transfer mode. Are all of our WPSs null? If I understand D1.1 correctly, we would need to...

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Arc Welding 101: Grooming tips for welding equipment (and the men who use it)

April 21, 2014

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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,...

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Arc Welding 101: Don't underestimate welding vocab

September 11, 2007

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Q: I was recently involved in a discussion about a joint discontinuity. We were trying to determine whether it could be considered undercut or underfill. The weld did not fill the butt joint for the entire V-groove length. Some guys classified the melted-away edge of the joint as undercut; I...

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Arc Welding 101: Paint tank troubles

May 8, 2007

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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...

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Arc Welding 101: Preheating a shaft-sprocket assembly

February 13, 2007

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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...

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Weld inspection before you weld

April 11, 2006

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Although it takes effort and time, procedure qualification testing can help you standardize your welding procedures and know what to expect when it comes to the quality of your manufactured parts.

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Are your weld procedure specifications relevant?

March 8, 2005

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In fabrication shops that require code or standard compliance, welding sometimes isn't completed within the guidelines of the qualified weld procedure. Weld inspectors often must review finished products that don't make the intended customer happy. Inspectors typically try to answer the following...

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