Are you looking for advice on bar steel fatigue? The American Iron and Steel Institute is starting up a blog on that subject for materials engineers, application engineers, FEA simulation experts, as well as OEM and supplier design engineers. The first post covers the topic Does Grain Refining Practice Affect Fatigue Properties? The post looks at strain life data for aluminum, niobium and vanadium that are used for grain refinement in medium carbon steels. The post comes from blog administrator Tom Oakwood, a PhD metallurgical engineer with 40 years experience. He was one of the founding members of the AISI Bar Fatigue Database.
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
A self-propelled robot developed by a team of researchers headed by MIT promises to detect leaks quickly and accurately in gas pipelines, eliminating the likelihood of dangerous explosions. The robot may also be useful in water and petroleum pipe leak detection.
Aerojet Rocketdyne has built and successfully hot-fire tested an entire 3D-printed rocket engine. In other news, NASA's 3D-printed rocket engine injectors survived tests generating a record 20,000 pounds of thrust. Some performed equally well or better than welded parts.
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