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.
An MIT research team has invented what they see as a solution to the need for biodegradable 3D-printable materials made from something besides petroleum-based sources: a water-based robotic additive extrusion method that makes objects from biodegradable hydrogel composites.
Alcoa has unveiled a new manufacturing and materials technology for making aluminum sheet, aimed especially at automotive, industrial, and packaging applications. If all its claims are true, this is a major breakthrough, and may convince more automotive engineers to use aluminum.
NASA has just installed a giant robot to help in its research on composite aerospace materials, like those used for the Orion spacecraft. The agency wants to shave the time it takes to get composites through design, test, and manufacturing stages.
The European Space Agency (ESA) is working with architects Foster + Partners to test the possibility of using lunar regolith, or moon rocks, and 3D printing to make structures for use on the moon. A new video shows some cool animations of a hypothetical lunar mission that carries out this vision.
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