Metal additive manufacturing system and method

Abstract

The invention discloses a metal additive manufacturing system and method, a rotary supporting seat body and a wire feeding forming seat body are adopted to form a rotary forming device, a forming rotary shaft system is arranged in the rotary supporting seat body, and the forming rotary shaft system is fixedly connected with a workpiece supporting shaft capable of synchronously rotating with the forming rotary shaft system; the wire feeding forming seat body is connected with a forming heat source and a wire feeding head through a mechanical arm, the wire feeding forming seat body is installed on the rotary supporting seat body through an X / Y motion platform system, the wire feeding head can lay a wire bundle along the surface of the workpiece supporting shaft, and a high-energy beam can act on a wire material combination position for fusion deposition forming. The size of a fusion forming area can be effectively reduced, then the total heat of the fusion forming area is reduced, the fusion forming area can be rapidly cooled, solidified and formed under the same condition, a wire winding mode is adopted, the influence of gravity or the vacuum environment is avoided, and the requirement of the forming area for a heat source power is effectively reduced; and a phenomenon that the wire bundles are not tightly combined in a completely fusion state is also avoided.

Description

technical field [0001] The invention belongs to a novel additive manufacturing technology, in particular to a metal additive manufacturing system and method. Background technique [0002] Additive manufacturing, commonly known as 3D printing, integrates computer-aided design, material processing and molding technology, and is based on digital model files. Through software and numerical control system, special metal materials, non-metal materials and medical biological materials are processed according to extrusion, sintering , melting, light curing, spraying and other ways to accumulate layer by layer to create a manufacturing technology for physical objects. Compared with the traditional processing mode of raw material removal-cutting and assembly, it is a "bottom-up" manufacturing method through material accumulation, starting from scratch. According to the types of technology, there are injection molding, binder injection molding, photopolymer curing molding, material ex...

AI Technical Summary

Problems solved by technology

[0003] Additive manufacturing still has some disadvantages: material limitations, expensive manufacturing costs, low molding efficiency

The additive manufacturing of metal materials in microgravity and vacuum environment is often quite different from that in gravity environment, and the heat in vacuum environment is mainly thermal radiation, and the heat dissipation is slow, and the melting and forming area cannot be as in the air. Rapid cooling down greatly reduces manufacturing efficiency

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