Manufacturing method of pure copper 3D printing additive material

Abstract

The invention provides a manufacturing method of a pure copper 3D printing additive material, and belongs to the technical field of 3D printing additive material manufacturing. The manufacturing method of the pure copper 3D printing additive material specifically comprises the following steps of three-dimensional modeling of a pure copper additive material part; layering of a curved surface and support establishment; selection of pure copper additive material raw materials; printing of the pure copper additive material; thermal treatment of the pure copper additive material part; polishing ofthe pure copper additive material part; and quality inspection of the pure copper additive material. By the adoption of the manufacturing method, no mold is required, particularly, the cost is not increased when a complex object is manufactured, the part manufacturing cost can be substantially reduced, and the production cycle of the part is shortened; meanwhile, the internal stress of the thin-walled part can be eliminated, and the deformation of the part is avoided; the 3D printing also has the advantages that the dimensional accuracy is high, the surface quality is high, and the performanceof formed parts is excellent; and the defect that according to a conventional casting method, when the processing operation is conducted, the crystal grain is large is overcome, the process of the laser 3D printing belongs to the fast-heating and rapid-cooling machining process, and the crystal grain of the part is refined. As a result, the part which is processed by the laser 3D printing is highin accuracy, good in forming property and high in comprehensive mechanical property.

Description

technical field [0001] The invention belongs to the technical field of 3D printing additive manufacturing, and in particular relates to a pure copper 3D printing additive manufacturing method. Background technique [0002] "3D printing" technology, also known as additive manufacturing technology, is a kind of rapid prototyping technology. It is based on digital model files, through software layered discrete and numerical control molding system, using laser beams, hot melt nozzles, etc. to build up bondable materials such as powdered metal or plastic, and superimpose them layer by layer. Technology that produces a physical product. The core principle of 3D printing is "layer-by-layer manufacturing, superposition layer by layer". Compared with the traditional "subtractive manufacturing" manufacturing technology, 3D printing technology integrates machinery, materials, computers, communications, control technology and biomedicine. , has the obvious advantages of realizing inte...

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Problems solved by technology

[0008] In order to solve the above technical problems, the present invention provides a pure copper 3D printing additive manufacturing method to solve the problems of the existing pure copper additive manufacturing method, such as coarse grains of the finished parts, poor mechanical and physical properties of the parts and the defects of the parts. The problem of low precision and low processing efficiency

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