Method and Substrate for Easy Release of Parts Made by Cold Spray
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A substrate for 3D printing using a cold spray technique. The substrate of the present invention has a porous surface with the size of pores smaller than approximately 24.4 times the mean particle size of feedstock powders for cold spray processing and larger than or equal to approximately 6.84 times the mean particle size. Due to no adhesion of a 3D-printed part to the porous regions of the substrate, the parts fabricated by cold spray can be easily removed from the porous substrate without cutting.
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