A metal 3D printing method based on the nano-temperature size effect
A three-dimensional printing, size effect technology, applied in the field of additive manufacturing, can solve the problems of high energy consumption, slow molding speed, low electro-optical conversion efficiency, etc., to eliminate residual stress accumulation, reduce surface roughness, and eliminate thermal stress problems. Effect
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[0035] The present invention will be described in further detail below in combination with specific embodiments.
[0036] The present invention provides a metal three-dimensional printing molding method based on the nano-temperature size effect, comprising the following steps:
[0037] (1) Prepare the CAD data file of the 3D printing molded part, the molded substrate, the metal nanopowder and the nanopowder jet array plate;
[0038] The CAD data file of the 3D printing molded part is carried out by the designer using 3D CAD software to perform 3D modeling of the parts to be processed, and adds necessary auxiliary support structures according to the obtained 3D model size and shape of the parts, and then presses the traditional 3D The principle of laminated manufacturing of printing is to set the layer thickness (the thickness of the single-layer flat layer after the nano-powder is melted) to obtain the closed contour graphic data set after layered slicing;
[0039] The upper ...
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