Novelis, an Alcan spinoff that is now part of the Aditya Birla Group, has developed a new aluminum alloy that is making impressive gains in automotive and elsewhere. Novelis Fusion is based on a conventional direct chill (DC) mold that is modified in order to allow multiple metal streams to be cast into one single aluminum sheet ingot. The result is an alloy, not unlike multilayer polymer sheet, that is joined together by a metallurgical bond. One of the heavyweight users is the BMW 7 Series, which uses lightweight door components made from Novelis Fusion. A new grade (PA221) designed for appliances is also now available.
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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