Combined laser melting and laser milling 3D (three-Dimensional) printing equipment

Abstract

The invention relates to the technical field of 3D (three-Dimensional) printing equipment, and discloses combined laser melting and laser milling 3D printing equipment, which comprises a pedestal with a machining platform, wherein a powder laying structure is arranged on the pedestal; a laser emission structure and a laser milling head are arranged above the machining platform; a laser beam is emitted by the laser emission structure to melt a metal powder layer on the machining platform to form a single-layer or multilayer approximate body; a laser beam is emitted by the laser milling head to mill the formed single-layer or multilayer approximate body. According to the 3D printing equipment, a conventional milling-based removal precision machining process is integrated with a conventional laser beam melting 3D printing-based incremental stacking manufacturing process, so that shortcomings in aspects of dimensional and shape precision and the like of a conventional 3D printing technology are overcome, the restrictions of cutting machining to the complexity and the like of a part are broken, a machined part is not required to be secondarily machined, and the problems of difficulty in clamping, great machining errors and deformation and machining difficulty of the part during machining are solved.

Description

technical field [0001] The invention relates to the technical field of 3D printing equipment, in particular to laser melting and laser milling composite 3D printing equipment. Background technique [0002] Metal melting 3D printing technology (Selective Laser Melting, SLM) uses high-brightness laser to directly melt metal powder materials without binders, and directly forms arbitrary complex structural parts with the same performance as castings from 3D models. [0003] Although metal fusion 3D printing technology can form parts that reach the casting strength level, the shape error of the formed parts is large and the surface finish is not high. In this way, the formed parts need to be processed twice by traditional machining methods. Only by processing can the shape and surface accuracy required by the aviation manufacturing industry be obtained. However, most parts in the aerospace industry, such as engine nozzles, blades, honeycomb structure combustion chambers, etc., a...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide laser melting and laser milling composite 3D printing equipment, aiming to solve the problem of secondary processing of parts processed by metal melting 3D printing technology on machine tools in the prior art, which has difficulties in clamping, large processing errors, and Variability and Difficulty Processing Issues

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