Metal die 3D printing laser micro-region treating method

Abstract

The invention relates to a metal die 3D printing laser micro-region treating method. The method comprises the following steps of 1, a digital-analog blocking pretreatment stage; 2, a modeling layered scanning stage; 3, a laser cladding deposition forming stage, wherein in the stage, after laser cladding deposition is carried out on a first layer slice, secondary laser surface reinforcing treatment is carried out micro-regions in layers of the first layer slice, layered laser cladding deposition on a second layer slice and secondary laser surface reinforcing and quenching treatment on micro-regions in the second layer slice are carried out after secondary laser quenching surface treatment on the micro-regions of the first layer slice is completed, layered laser cladding forming of all slices is completed in this way, and a metal die forming piece is formed; 4, a posttreatment stage, wherein heat treatment, polishing and machining treatment are included in the stage. The metal die 3D printing laser micro-region treating method has the advantages that the design is reasonable, operation is convenient, and the metal die forming piece is reliable in mechanical performance, short in machining and manufacturing operation time, capable of effectively relieving the labor intensity of operation workers and lowering machining cost and the like.

Description

Technical field [0001] The invention relates to the technical field of laser cladding for mold processing and manufacturing, and in particular to a laser micro-area processing method for 3D printing of a metal mold. Background technique [0002] As an indispensable manufacturing tool in modern industrial production, molds are produced and used in a large amount every year. In the process of mold use, problems such as wear and cracking will inevitably occur. Common mold repair methods include welding Repair, while the welding repair process has defects such as high labor intensity, low work efficiency, complicated procedures, waste of metal powder materials, and poor surface treatment performance. Therefore, to propose a more reasonable metal mold forming design and manufacturing method to obtain higher quality metal molds has important research significance. Summary of the invention [0003] In view of the above-mentioned shortcomings in mold processing and manufacturing in the p...

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Problems solved by technology

[0002] As an indispensable manufacturing tool in modern industrial production, molds have a large amount of production and use every year. During the use of molds, problems such as wear and cracking will inevitably occur. Common mold repair methods include welding In the process of welding repair, there are defects such as high labor intensity of operators, low work efficiency, complicated process, waste of metal powder materials, and low surface treatment performance.

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