High-precision laser additive and subtractive material combined manufacturing device

Abstract

The invention discloses a high-precision laser additive and subtractive material combined manufacturing device. The device comprises a sealed forming chamber, an inert protective gas source and a machining forming platform. The inert protective gas source is connected with the sealed forming chamber. The machining forming platform is arranged in the sealed forming chamber, and a light path selection system is arranged over the machining forming platform. A machining station is arranged on the machining forming platform, a lead screw is arranged at the bottom of the machining forming platform,the machining forming platform is fixed to a sliding block of the lead screw, the lead screw is connected with a lead screw motor, and the machining forming platform can be driven by the lead screw motor to slide forwards and backwards on the lead screw. The light path selection system comprises an additive material independent laser light path and a subtractive material independent laser light path. The additive material independent laser light path and the subtractive material independent laser light path are parallel to each other, are arranged in the direction of the lead screw and do notshare equipment. According to the device, the laser additive and subtractive material technology is integrated, the forming precision, the surface quality, the structure performance and the residual stress state of a complex fine additive workpiece are improved, and one-stop high-efficiency high-precision and high-performance additive workpiece manufacturing operation is achieved.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and relates to a composite manufacturing device for adding and subtracting materials with high precision laser. Background technique [0002] Selective Laser Melting (SLM) is a laser additive manufacturing technology that manufactures solid parts based on the material discrete-gradual accumulation method. Specifically, it uses a high-power laser as a heat source to melt metal powder layer by layer. Parts with complex and fine structures (high processing precision), this technology can realize rapid, moldless near-net molding of dense materials with complex structures, and provide new ideas for the integrated preparation of complex and fine structure parts, especially for aerospace The molding of key precision parts in the fields of medical equipment, precision machine tools, and electronic communications provides a simple, fast, low-cost, and green flexible manufacturing technology from ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of low geometric dimension accuracy, poor surface quality, large residual tensile stress and many internal defects of SLM forming parts in the prior art, and then provide a kind of manufacturing equipment that realizes high precision and integrated near-net shape

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