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NASA creates special copper alloy for 3D printing rocket parts

NASA researchers with the Glenn Research Center (GRC) and Marshall Space Flight Center (MSFC) teamed up to develop GRCop-42, a copper-based high strength alloy with high conductivity. Using powder bed fusion (PBF) 3D printing, NASA researchers successfully 3D printed near-fully-dense GRCop-42 components that are resistant to deformation and remain strong even at elevated temperatures.

via 3ders.org, http://www.3ders.org/articles/20190322-nasa-creates-special-copper-alloy-for-3d-printing-rocket-parts.html

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