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Consumables Corner: Selecting the correct diameter for flux-cored wire

July 9, 2014

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I work in a large manufacturing fabrication shop where we weld subassemblies and then fit and weld them together to complete the machines we manufacture. Currently we use gas-shielded, flux-cored wires from 0.045 to 0.09375 in. in diameter. At what point is a small-diameter wire too inefficient,...

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Downsizing can be a killer

July 8, 2014

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All businesses of all sizes want to save money and be as lean as possible. However, if taken too far, some cost-cutting measures can have unwelcome consequences and cause a shop to go under.

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Consumables Corner: Combating overheating in work clamps

July 8, 2014

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Q: I weld in a large pressure vessel shop and use many welding processes, including SMAW, GMAW, FCAW, and SAW. Regardless of the process, our work clamps always get very hot. We’ve even had some arcing from the ground clamp. We have welded several grounds to the workpiece to remedy this problem,...

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Consumables Corner: Combating dull weld appearance with metal-cored stainless steel wire

July 7, 2014

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Q: We fabricate 401 stainless steel components and have considered using metal-cored stainless steel consumables. One of the issues with metal-cored consumables is the dull appearance of the weld compared to the appearance achieved with a solid wire. What can we do to maintain a clean or shiny...

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Stainless steel weld finishing by the numbers

July 7, 2014

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As the demand for stainless steel increases, welders and metal fabricators need to understand how to obtain the proper finish.

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Coating extends tool life x 3

July 7, 2014

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Like so many automotive suppliers, the GT Technologies stamping team encountered tooling challenges when it shifted its work material from cold-rolled steel to a tougher steel for certain components. Its tooling started wearing out in a third of the time, creating downtime havoc and production disruption. Switching to a different tool coating helped the manufacturer resolve its tool and die wear problems.

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Portable pipe cutting tool simplifies sawing process

July 7, 2014

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It's not often that a tool as simple as a hand-held circular saw wins an award for its design, but it happened when Exact Pipe Tools Inc. submitted three models to Design Zentrum Nordrhein Westfalen, one of the oldest design institutes in Europe. The saw clamps to the pipe, so users are safer and cuts are straighter.

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Consumables for high-amperage welding

July 7, 2014

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High-amperage welding, whether in semiautomatic or robotic applications, pust a great amount of stress on welding consumables. By following a few tips, however, a welder can extend the life of these components.

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Consumables Corner: Nixing porosity during weld start

July 3, 2014

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Q: I work for a job shop that fabricates and welds process piping for various applications. The pipes, made from A106-88a carbon steel and 304 and 316 stainless steel, are welded using GMAW, FCAW, and GTAW. We have been experiencing porosity, primarily on the weld starts. Our shielding gas is a...

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Consumables Corner: Welding heat treatable steels

July 2, 2014

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Q: Our shop won a contract that requires welding 4130 steel. I’ve been told this is a heat-treatable steel. Can you tell me which different welding procedures have to be used to weld this material? A: The most commonly welded heat-treatable steels are 4130, 4340, and 8630. However, any steel...

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Consumables Corner: Horizontal fillet test troubles

July 1, 2014

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Q: For a recently acquired large structural job, we have had to qualify a single-pass 5/16-in. fillet using 0.045-in. E71T-9M flux-cored wire. We are having trouble passing the horizontal fillet test. When performing the weld break test on the horizontal fillet weld, there is incomplete penetration...

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From looms to thermal spray to laser cladding

June 30, 2014

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Hayden Corp. has persevered over a century of change. It began as a supplier of wire cloth sold to the papermaking industry. Now it makes use of some of the most advanced surfacing technologies available.

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Cutting clean with 1-micron laser optics

June 30, 2014

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The high-brightness 1-micron cutting laser is redefining productivity in metal fabrication. The laser’s good absorption helps it cut faster with less power. It also means that keeping optics clean and dust-free is essential.

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Tube producer opens doors to new markets, controls costs with laser welding

June 30, 2014

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A niche tube producer that formerly used GTAW exclusively, Esta Rohr began changing over to laser welding in 2005. The change is now complete, with substantial changes. The company has reduced its number tube production lines from five to three, but its output has increased tremendously. Meanwhile, laser welding has allowed it to cut some costs, helping its products compete against others.

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FAB 40: Springs Fabrication and the ice house

June 27, 2014

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Springs Fabrication has humble beginnings, stereotypical of many successful American businesses. As it turns out, there's a reason that's a stereotype.

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