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.
HP revealed more of its 3D printing plans in a recent webinar. Senior vice president of inkjet and graphics solution business Stephen Nigro spoke about how the technology works and expanded on HP's vision of open collaboration to commercialize its Multi Jet Fusion 3D printing technology for end-production, and open collaboration on new materials. He also said HP will create software to help users decide when to use Multi Jet Fusion versus conventional subtractive manufacturing.
A lightweight electric urban concept car designed by several European companies weighs only 992 lb without its battery. It would have weighed 26.7 lb more if its windows were made of glass instead of the specially coated LEXAN polycarbonate resin from SABIC Innovative Plastics.
Skylar Tibbits' team in MIT's Self-Assembly Lab is now 4D printing self-assembling shapes made of programmable carbon composites and custom wood grain. The composites are being used in a sport car airfoil, and the wood grain is beautiful.
The NanoSteel Company has produced high-hardness ferrous metal matrix composite (MMC) parts using a new nanosteel powder in a one-step 3D-printing process. Parts are 99.9% dense, crack-free, and with wear resistance comparable to M2 tool steels.
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