A multi-process 3D printing method

Abstract

The present invention provides a multi-process 3D printing method. By layering the three-dimensional model, the material component information and contour information of each layer section are obtained, and different printing mechanisms are selected according to different material component information. In the powder spreading mechanism, the gradient material printing mechanism and the droplet jet printing head mechanism, according to the printing area and the type of printing material, different types of powder materials or liquid materials are loaded into the corresponding material boxes, and the materials are uniformly printed in sequence. Corresponding printing area; thereby realizing multi-material, multi-process overall printing of mixed materials and different types of structural objects, the 3D printing method described in the present invention breaks through the limitations of current 3D printing single process and single material homogeneous printing It is easy to realize the printing of complex structures, and provides convenience for the printing of 3D objects.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a multi-process 3D printing method. Background technique [0002] 3D printing is a kind of additive manufacturing and rapid prototyping. It is based on digital model files and uses powder, liquid, liquid-solid mixture, wire, sheet and other forms of metal, polymer, ceramic, Biological materials, etc., are the technology to construct objects by layer-by-layer printing. Its advantages are precise physical replication, unlimited combinations of materials, unlimited design space, and easy realization of complex structures, which are beyond the reach of traditional manufacturing methods. [0003] 3D printing mainly includes the following molding technologies: selective laser sintering (SLS) is to sinter the solid part of the powder according to the interface profile information; selective laser sintering (SLM) is to rapidly melt the powder material with a laser beam and obtain a ...

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Problems solved by technology

[0007] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide users with a multi-process 3D printing method, which overcomes the single process of the 3D printing device and method in the prior art, and the single printing material that can be completed cannot be realized. Defects in the overall printing of multi-material mixed-molded objects

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