Method and device for carrying out 3D (Three-Dimensional) printing and composite manufacturing on metal

Abstract

The invention belongs to the technical field of 3D (Three-Dimensional) printing, and particularly relates to a method and a device for carrying out 3D printing and composite manufacturing on metal. The method for carrying out the 3D printing and the composite manufacturing on the metal comprises the following steps: S101, fusing metal powder under the action of an ultrasonic vibration energy fieldaccording to a preset 3D printing and filling scanning path, thus forming cladding layers of a workpiece; S102, simultaneously carrying out laser shock processing on the cladding layers under the action of the ultrasonic vibration energy field, and impacting and forging the cladding layers through ultrasonic vibration waves and shock waves induced by laser shock; S103, stacking the cladding layers layer by layer, thus obtaining the workpiece. Aiming at the problem existing when an existing metal 3D printing technology is used for manufacturing metal parts, the method disclosed by the invention has the advantages that internal defects of pores, poor fusion, shrinkage porosity and cracks of metal cladding layers and thermal stress can be removed to the maximum, the internal quality and themechanical dynamical comprehensive performance of the metal parts can be increased, and the problems of macroscopic deformation and cracking can be effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a metal 3D printing composite manufacturing method and a device thereof. Background technique [0002] For traditional machining and other subtractive manufacturing technologies, metal 3D printing technology is the main form of metal additive manufacturing technology, which is a technology that realizes manufacturing through the gradual accumulation of materials. This technology uses a computer to cut the computerized 3D digital model of metal parts into a series of thin layers of a certain thickness, and generates parts of any shape by layer-by-layer superposition. Because this technology does not require traditional tools or molds, it can realize the manufacture of complex structures that are difficult or impossible to process by traditional techniques, and can effectively shorten the manufacturing cycle. Therefore, 3D printing technology for metal parts is the ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a metal 3D printing composite manufacturing method and its device, which can effectively solve the problem that the metal parts manufactured by the existing metal 3D printing technology can eliminate pores, unfused, and shrinkage porosity to the greatest extent. technical defects and cracks

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