Toyota is changing its engineering practices in an effort to halt a slide in vehicle quality. In one major shift, more engineering work will be done in house. The amount of engineering work contracted to outside firms will drop from about 30 percent to 10 percent, according to an article in this morning’s Wall Street Journal. Toyota will also reduce total engineering effort by eliminating engine options and other design variants. In another change, testing time will be stretched out, and possibly will include use of more physical prototypes.
At least some of Toyota’s recent quality problems have been caused by poor fundamental engineering execution. In a problem disclosed by Design News, Toyota says a poorly selected plastic used as friction levers in accelerator pedal assemblies caused the gas pedal to malfunction in certain weather conditions.
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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