Arc Welding

The arc welding technology area focuses on the most commonly used arc welding processes, mainly GMAW/MIG, GTAW/TIG, SMAW/stick, and plasma. The articles and press releases cover processes and power sources, plus all of the related items—electrodes and wire, wire feeders, fixtures, manipulators, positioners, and power sources. If you need information on personal protective gear, ventilation systems, and safety practices for welders, see our Safety coverage area.

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Metalworking throughout history

May 5, 2014

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Metalworking began long before the Iron Age, and welding has undergone its share of developments throughout the centuries. How much do you know about its history and evolution?

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Make way for the brew crew

May 5, 2014

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Craft beer is all the rage these days, and Crawford Co., Rock Island, Ill., has thrown its hat into the ring. After working closely with a local brewer who contracted the fabricator to build larger-capacity equipment, the two partnered to form a no-nonsense brewing division within the company to address the needs of the booming craft beer industry.

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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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Cups for GTAW withstand high-amperage heat applications

April 30, 2014

CK Worldwide Inc. offers Super Cups for GTAW applications. They withstand high-amperage and high-reflective heat applications while minimizing cracking problems related to thermal shock, states the company. The cups, made from silicon nitride, are the most heat-resistant cups available from the...

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Arc Welding 101: Qualified or not?

April 30, 2014

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Q: I'm working with a company whose welders are certified on A36 plate with 0.045 solid wire. They have taken the test in a vertical-down progression using GMAW in globular transfer mode. They took it on 1-in. plate, single V-groove with backing. The company they want to do work for wants them...

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Arc Welding 101: Play by the rules of welding

April 29, 2014

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Q: I have a problem with the B31.3 code: It seems to be costing us jobs. Recently we were in talks with a regular customer to do some copper brazing. When we made them aware of the requirements for pressure testing, they backed out. In their words, they didn't want to "go through all that." This is...

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Ohio Technical College, Lincoln Electric team up with Boy Scouts to promote Welding Badge

April 28, 2014

Ohio Technical College and Lincoln Electric have teamed with the Boy Scouts of America in northern Ohio to help Scouts earn the Welding Merit Badge. More than 150 Scouts had the opportunity to explore welding-related career paths, such as automotive, collision, restoration, diesel, and generator....

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Arc Welding 101: Is metal-cored MIG a suitable alternative for FCAW?

April 28, 2014

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Q: We are a job shop that builds shipping containers out of aluminum and occasionally steel. We have a steel job coming through that calls for flux-cored arc welding (FCAW). Is there an equivalent or alternative to FCAW available? Amanda M. A: I’m not aware of all the specifics of your...

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gas delivery

The economies of efficiency in gas delivery

April 28, 2014

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Continuous supply of gas to a fabricating activity is the goal of any shop. Fabricators may not realize that they have choices in gas delivery system design that help to ensure uptime is maximized.

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Arc Welding 101: Advice for quoting weldments

April 25, 2014

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Q: I am looking for some insight on the best approach, best practices, and industry standards for quoting weldments. There seems to be a great deal of information out there about deposition rates and travel speeds, but not a lot about the additional variables like clamping, part handling, cleaning,...

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But it’s only a quick fix

April 24, 2014

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It’s something welders hear all the time: “It’s a small job, just a quick fix,” meaning you’ll charge little if anything. It’s not that simple, not by a longshot.

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Arc Welding 101: Finding clues in the AWS D1.1 Commentary

April 24, 2014

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Q:The company that I work for makes a single-pass circumferential weld on which there is a minor tendency for an open pore in the weld crater at the tie-in. Our engineering department deems this weld discontinuity as a cosmetic issue only and thereby has authorized the use of a sealant. In the...

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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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