NASAのインスタグラム(nasa) - 5月30日 00時11分

Fired Up! We've tested a combustion chamber made using a new combination of 3-D printing techniques that breaks barriers in advanced manufacturing, by reducing time and costs involved in building rocket engine parts.
In this image, we successfully hot-fire test a 3-D printed copper combustion chamber liner with an E-Beam Free Form Fabrication manufactured nickel-alloy jacket. The hardware must withstand extreme hot and cold temperatures inside the engine as extremely cold propellants are heated up and burned for propulsion.

Image credit: NASA/MSFC/David Olive

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