The New Obama fuel mileage requirements for cars are music to the ears of the American steel industry. That might seem odd. After all, aren’t a lot of those concept cars rolled out of Detroit every year loaded with plastic and other lightweight materials options? Yes, but a lot of those concepts remain concepts. Take the Chevy Volt for example. It was first shown at the Detroit Auto Show in January 2007 with a polycarbonate roof and a hood made from recycled soda bottles. Once GM decided to actually make the Volt, those two ideas were quickly dropped. Too impractical. Too expensive. A study recently released by the American Iron and Steel Institute predicts a 10 percent annual growth rate in the use of advanced high-strength steels through 2020 as auto makers try to meet tough new fuel standards.
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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