July 7, 2014
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.
July 7, 2014
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.
July 3, 2014
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...
July 2, 2014
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...
July 1, 2014
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...
June 30, 2014
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.
June 27, 2014
Q: I work for a structural steel fabricator and we are getting ready to start work on a bridge job that specifies A588 material. We have worked on this material in the past using a weathering-grade filler metal. Our engineer has recommended we use a 1 percent nickel electrode. Is this right? A:...
June 27, 2014
You can't improve something you don't measure. Impulse Manufacturing wants to cut down the time between jobs—specifically, between the last good part of the previous job to the first good part of the next job.