Selective laser fusion composite manufacturing machine tool and workpiece composite manufacturing method

Abstract

The invention discloses a selective laser fusion composite manufacturing machine tool. The selective laser fusion composite manufacturing machine tool comprises a lifting workbench, a main shaft, a material increase manufacturing mechanism, a material decrease manufacturing mechanism and a defect detection mechanism capable of detecting workpiece defects online. The material increase manufacturing mechanism comprises a laser scanning system and a powder feeding device; the laser scanning system is connected with a laser generator; the powder feeding device comprises a powder box and a scraper plate. The material decrease manufacturing mechanism comprises a tool, a tool magazine and a tool-changing bracket. The defect detection mechanism comprises a defect detector and a detection signal collection and analysis system. The invention further discloses a workpiece composite manufacturing method. The method mainly includes the step of conducting selective laser fusion material increase manufacturing, defect detection and material decrease processing in a circulating mode till composite manufacturing is completed finally. By combination of the selective laser fusion material increase manufacturing, material decrease processing and defect detection, it is ensured that workpieces with high size precision, high surface quality and low internal defects are formed at a time, the production period is shortened effectively, and the part manufacturing quality and precision are ensured.

Description

technical field [0001] The invention relates to the technical field of machine tools, in particular to a compound manufacturing machine tool and a compound manufacturing method for workpieces. Background technique [0002] With the increasing demand for precision and complex parts in the aerospace, nuclear energy, and ocean engineering manufacturing industries, the emerging additive manufacturing technology has developed rapidly in the manufacture of complex parts due to its flexibility and high efficiency. However, the precision and surface quality of complex parts manufactured by additive manufacturing are often lower than the actual requirements, and after forming, material reduction (such as cutting, etc.) processing is required on the machine tool. Due to changes in positioning benchmarks, production efficiency is low, cycle time is extended, and costs are increased. Additively manufactured parts are often complex, and subtractive machining of these parts is difficult ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of defects in the quality of the existing additive manufacturing parts and the difficulty in controlling the precision proposed above, and researches and designs a selective laser melting composite manufacturing machine tool and workpiece composite manufacturing method

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