There’s a “real horse race” at General Motors between new magnesium alloys and carbon-fiber reinforced plastics for use in load-bearing structural applications of future car platforms. That comment was made in an exclusive Design News interview today with Mark Verbrugge, the director of GM’s materials and process lab. For the moment, magnesium is leading because of the successful use of a new Norsk Hydro magnesium alloy in the engine cradle of the Corvette Z06, The cradle provides a 35 percent weight savings over the previous aluminum structure. “There are only about 10 pounds of magnesium in a car now,” says Verbrugge. “There’s a lot of bandwidth there for magnesium to go after.”
Plastic bags can become useful as either raw materials for plastics or feedstock for fuel. It's when they're not recycled that they become a major problem. That's what California's bag ban will prevent.
NASA's JPL and Caltech have achieved the mind-boggling feat of 3D printing multiple metals in a single end-part, grading from one alloy to another. They've also developed a method for combining metals with carbon fiber composites in end-production parts.
More and more robots are becoming more autonomous all the time. Now Lockheed Martin has completed a demo mission with two completely autonomous robotic vehicles performing resupply, reconnaissance, surveillance, and target acquisition.
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