Paul Cameron

CWI, Weld and NDT Level II Inspector
Braun Intertec
Rochester, MN


Phone: 507-269-7142
Contact via email

Arc Welding 101: Achieving a good work lead connection

August 29, 2014

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Q: What makes a good ground connection, and why is it important? A: In a welding circuit, current needs to pass through as few connections as possible, and the circuit itself needs to be as short as is practical. On the positive (+) side for gas metal arc welding (GMAW), direct-current electrode...

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Arc Welding 101: Reading between the lines of AWS D1.1

August 27, 2014

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Q: I am a weld inspector and one of my clients builds control panels. A potential customer of theirs requested that they conform to AWS D1.1 standards on a control panel. This seems odd to me. Can a company become AWS D1.1-certified? Is there a certain process they have to go through to become a...

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Arc Welding 101: When to use updated AWS D1.1

June 2, 2014

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Q: I currently use the AWS D1.1-2006 edition and was wondering if I should get the 2010 edition. Dan C. A: Take a look at Section 4.2.1 of your D1.1-06 edition, referred to as “Clause” in later editions. It states, “The use of earlier editions shall be prohibited for new...

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Arc Welding 101: Oscillation during welding - Why?

May 30, 2014

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Q: What are the reasons to oscillate a weld process? Vince H. A: Oscillation helps a steelworker using electroslag to fabricate components for San Francisco’s Bank of America building; it helped to minimize the arm fatigue of a pipefitter as he built Louisiana’s River Bend nuclear power...

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Arc Welding 101: Welder requalification testing - When and why?

May 13, 2014

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Q: If a welder is no longer welding but he wants to maintain his qualifications period of effectiveness, we require four hours of production welding time to maintain that qualification. Four hours doesn’t seem quite long enough to stay in the groove. What say you? Jeff P. A: As a good...

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Arc Welding 101: Updating WPSs and PQRs

May 12, 2014

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Q: We weld sheet metal to D1.3 requirements. Our current welding procedure specification needs to be updated. Our customers are asking for a separate WPS/ PQR [procedure qualification record] for fillet and groove welds. Until now I believe we had both fillets and grooves covered by one WPS/PQR....

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Arc Welding 101: CV or CC - What’s the difference?

May 9, 2014

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Q: What is the difference between constant current and constant voltage? A: I’m often called on to explain this topic when I teach. Electric arc welding has two main variables: current and voltage. Welding machines will supply both, but they are capable of consistently maintaining only one of...

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Arc Welding 101: “Freestylin’” fab shops

May 8, 2014

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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...

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Arc Welding 101: Benefits of the CWI designation

May 7, 2014

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Q: I am trying to decide whether obtaining CWI designation would be beneficial to my career. I am presently unemployed and would like to increase my marketability to potential employers. I have a B.S. degree in metallurgical engineering plus over 20 years experience as a materials engineer in the...

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Arc Welding 101: D1.1 welder documentation

May 6, 2014

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Q: We have had guys certified for D1.1 for 15 years. But in the D1.1 book it says that they need to weld in every six-month period to keep their qualification current. What type of documentation do we need to keep on file to show that they have been welding? I cannot find this in the book, so I...

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Arc Welding 101: Minimizing defects from welding starts, stops

May 5, 2014

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Q: I am having trouble making welds that are all the same length when using GMAW. How can I create tie-ins that are all in line with each other and spaced out as they should be? Allen T. A: It is understood throughout the industry that most weld defects are attributed to weld stops and...

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Arc Welding 101: Evaluating partial joint penetration grooves for welder qualification to AWS D1.1

May 5, 2014

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Q: How would you evaluate a flare V-groove joint for welder qualification to AWS D1.1? The standard is not clear on how to test the prequalified joint (B-P11-GF). Dale L. A: AWS D1.1 Subclauses 4.25 and 4.28, you’ll see that D1.1 for personnel qualification states that a complete joint...

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Arc Welding 101: Advice for a conflicted CWI

May 2, 2014

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Q: The company I work for takes on jobs at the last minute, which makes it harder for me to work at the level that the customer requires, especially providing material test reports (MTR). I cannot provide all the MTRs our customer requires. Often we don't get them from our vendor, or parts have sat...

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Arc Welding 101: One WPS for multiple locations?

May 2, 2014

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Q: I work for a large U.S. corporation that is made up of 15 manufacturers, each with well-known brands within their respective markets. Since we all work for "X-Corp.," it seems as though we could share welding procedures specifications (WPS) and procedure qualification records (PQR) across the...

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Arc Welding 101: Welding’s danger zone

May 1, 2014

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Q: Which is more dangerous, nuclear welding or underwater welding? Stephanie V. A: When we use the term nuclear in welding, often we are referring to the need for high weld quality. Nuclear welding can be carried out in a fab shop miles from a nuclear power plant or on-site during...

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