Laser-cladding etching preparation method for 3D-printing formed part

Abstract

The invention relates to a laser-cladding etching preparation method for a 3D-printing formed part. The laser-cladding etching preparation method comprises the steps that 1 powder is fed; 2, layered slicing treatment is performed; 3, layered laser cladding is performed; 4, layered multi-scale porous structure laser etching treatment is performed; 5, after all the above steps are completed, a worktable controls a laser device of a 3D printer, an inert gas shielding device and a powder feeder to be in a closed state, and abrasion resistance and / or lubricity detection are conducted on the finally formed part. The laser-cladding etching preparation method adopts the laser cladding for additive material manufacturing, is assisted by high-precision laser etching to manufacture special multi-scale porous surface structure parts, has the advantages that the machining time can be shortened, the operation efficiency can be improved, the abrasion resistance and lubricity of the formed parts can be wholly improved, the problem of poor lateral forming precision of the formed parts due to additive material manufacturing is solved, pore edge hardness is greatly improved, and the laser-cladding etching preparation method can be reliable in performance, stable in operation, free of noise and pollution in the actual application process and the like.

Description

technical field [0001] The invention relates to the technical field of forming and manufacturing of 3D printing metal parts, in particular to a preparation method for laser cladding and etching of 3D printing formed parts. Background technique [0002] 3D printing technology has become one of the most concerned emerging technologies in the world. This emerging technology, together with other digital production models, has accelerated the development of manufacturing. The new technology of additive manufacturing technology is developing at an unprecedented speed. Among them, laser cladding has attracted special attention because of its advantages over other laser additive manufacturing technologies. Laser selective sintering / laser selective melting (SLS / SLM) and laser near-net shaping (LENS, laser cladding LCD) both use metal powder as the material to form metal parts. However, there is a big difference between the two. The former uses a powder bed and cannot form larger par...

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Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a preparation method for laser cladding and etching of 3D printing formed parts, which has the advantages of reducing processing time, improving operation efficiency, and wear resistance of formed parts. It has the advantages of improved overall performance and lubricating performance, overcomes the problem of poor lateral forming accuracy of additive manufacturing formed parts, and greatly improves the hardness of the edge of the hole, making it reliable in performance, stable in operation, noise-free, and pollution-free in practical applications. Effect

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