Paul Cameron

CWI
Braun Intertec
4210 Highway 14 East
Rochester, MN 55904


Phone: 507-269-7142
Contact via email

Arc Welding 101: All’s not fair in welding between U.S. and Canada

July 22, 2016

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Q: I know what you're thinking—another early Saturday morning question.... I've been looking at the requirements for obtaining a Canadian Welding Bureau CWB) inspector certification. Am I seeing this correctly? A CWB inspector can apply for an AWS certified welding inspector (CWI) by reciprocity...

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Arc Welding 101: Defining a fillet weld with D1.1

May 13, 2016

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Q: I'm auditing a fab shop and have a question regarding the AWS D1.1 code. The shop is referring to the corner joints in the plates encompassing the columns as fillet welds, yet there is no faying surface. D1.1 says a fillet can have up to 3/16-in. misalignment (with certain stipulations), which...

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Arc Welding 101: What does a “repair WPS” mean?

March 28, 2016

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When a code requires a repair weld procedure specification (WPS), what exactly does that mean? PWC explains.

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Arc Welding 101: Writing a WPS for an unlisted material

January 29, 2016

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Q: Can you point me in the right direction for procedure qualification record (PQR)/welding procedure specification (WPS) testing of pipe/tube to plate for fillets and partial-joint-penetration (PJP) grooves? The joint is a bevel groove covered by a fillet. The pipe/tube is unlisted AWS D1.1...

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Arc Welding 101: For the record: Grounding, work leads are not the same

November 16, 2015

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Q: I am writing this in regards to an article you wrote last year about grounding and grounds (“Achieving a good work lead connection,” Practical Welding Today, July/August 2014, p. 58). You mentioned that grounding to a structure should not be used if at all possible. My question is this: If...

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Arc Welding 101: Qualified versus certified—What’s the difference?

September 28, 2015

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Q: While browsing the AWS website I found listings for accredited test facilities. After a little more digging, I found AWS QC4-89, the standard for accreditation of test facilities. I was of the understanding that my endorsement as a certified welding inspector (CWI) permitted me to certify...

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Arc Welding 101: Cleaning material with brake cleaner before welding

July 24, 2015

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Combining welding and brake cleaners can lead to serious illness, permanent damage to your internal organs, or even death.

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Arc Welding 101: Plugging holes and pinholes

May 12, 2015

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Q: I am machining a bearing housing made out of 1045 and I have to plug and weld some cross holes. I am also using gas tungsten arc welding (GTAW) to eliminate a weld that is too large. My problem is that I am getting pinholes in my weld. Is it because I am welding 1018 to 1045? We didn’t machine...

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Arc Welding 101: How to inspect a coated weldment

March 16, 2015

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Q: How can I inspect/verify welds on painted product without being destructive? Eric D. A: Coatings come in many varieties on fabricated products. Galvanizing, painting, and even oxidizing a weathering steel will have a negative impact on the weld inspection process. For visual inspection, which...

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Arc Welding 101: Put your finger on it

January 20, 2015

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Q: I'm a welding instructor at a steel mill in northwest Indiana. We attended the “Train the Trainer” class at the Hobart Institute of Welding Technology 12 years ago to certify in all positions, limited and unlimited thickness plates with backing, using all shielded metal arc welding (SMAW)...

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Arc Welding 101: Those dang CVN requirements

November 21, 2014

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Q: Table 4.6 of AWS D1.1: 2010 is a list of supplementary essential variable changes that would require weld procedure specification (WPS) requalification due to Charpy V-notch (CVN) testing requirements. Under base metal (item 2) it indicates: Minimum thickness qualified is T or 5/8 inch...

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Arc Welding 101: Hands-off MIG education

October 30, 2014

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Q: I recently bought a gas metal arc welding (GMAW) machine, and I’ve also just completed a beginner’s welding course at the local college. Unfortunately, the basics don’t explain enough about the controls, such as voltage, wire speed, and stickout, and how they affect the weld penetration,...

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Arc Welding 101: Determining correct gas ratios

October 29, 2014

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Q: For years we have used 75/25 argon/carbon dioxide during gas metal arc welding (GMAW). I was told by my supplier that I needed to change to 90/10. Will one gas mixture provide better welding penetration than the other? Most of our work is mild steel (A-36), 0.1875 to 0.25 in. thick, although we...

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Arc Welding 101: Finding the 'best buy'

October 28, 2014

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Q: I’m looking for a Consumer Reports-type study on gas tungsten arc welding (GTAW) machines. As a small-business owner, I would like to know what would be the best buy. Have you done any reports on welding machines in terms of best makes and models? Glenn H. A: To answer your question, no, I...

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Arc Welding 101: Preweld cleaning tips for TIG

October 27, 2014

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Q: My primary function is to go into commercial kitchens and gas tungsten arc weld (GTAW) stainless steel that is covered in grease, dirt, and dust. In open areas I can grind the grease off, but I have a problem in tight corners that I can’t get into with a grinder. Can you recommend any cleaning...

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