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

A selective laser melting and machine tool technology, which is applied in the field of machine tools, can solve problems such as parts quality defects and difficulty in controlling precision, and achieve the effect of shortening the production cycle and ensuring manufacturing quality and precision

Inactive Publication Date: 2016-03-09
DALIAN UNIV OF TECH
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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

Method used

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

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Embodiment Construction

[0019] like figure 1 As shown, a selective laser melting compound manufacturing machine tool includes a lifting table 14, a spindle 5, an additive manufacturing mechanism, a material subtractive processing mechanism and a defect detection mechanism capable of online detection of defects in a workpiece 13. The machine tool is equipped with There is an elevating workbench 14, the workbench 14 can move vertically, the main shaft 5 is arranged above the workbench 14, the additive manufacturing mechanism includes a laser scanning system and a powder spreading device, and the laser scanning system 4 is connected to the laser generator 2 through an optical fiber 3, the powder spreading device includes a scraper 10 and a powder box 12, the subtractive processing assembly includes a tool 8, a tool magazine 9 and a tool change bracket 6, and the defect detection mechanism Including a defect detection head 7 and a defect detection signal acquisition and analysis system 11, the tool 8 and...

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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 ...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y10/00B33Y30/00
CPCY02P10/25
Inventor 张璧白倩杜巍李永涛
Owner DALIAN UNIV OF TECH
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