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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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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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Plasma cutting pipe in the water mist

May 5, 2014

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An Iowa pipe fabricating shop discovers it can eliminate secondary grinding on stainless steel material by adding water misting to its plasma cutting operation.

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Stamper rounds out automation suite with rigid transfer

May 5, 2014

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Stamping manufacturer A.J. Rose, Avon, Ohio, supplies precision-formed, deep drawn, metal products and assemblies such as transmission pistons, torque converter components, impellers, engine timing rings, ABS, water pump components, accessory drive pulleys, AC compressor clutch components, and numerous other powertrain components. The stamper needed the transfer system for a new transfer press to be robust and rigid to minimize tooling bar deflection and vibration. In addition, the system had to be compatible with existing tooling and to integrate well with a servo press’s variable speeds and modes

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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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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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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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Right fastener, right place, right time

April 28, 2014

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How do you error-proof a hardware insertion operation? One half involves the hardware insertion process itself, including proper training, but the other half entails inventory management: making sure operators have easy access to the right hardware at the right time.

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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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Beveling plate without the HAZ

April 28, 2014

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To avoid a heat affected zone and improve accuracy and throughput, fabricators can turn to nonthermal beveling options, incluiding milling, nibbling, and automated grinding

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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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