Laser Metal Deposition Shaping System for Direct Fabrication of Parts

被引:1
作者
Zhang, Kai [1 ]
Shang, Xiaofeng [2 ]
Liu, Weijun [3 ]
机构
[1] Shenyang Univ Technol, Sch Mech Engn, Shenyang 110870, Peoples R China
[2] Shenyang Inst Aeronaut Engn, Sch Machinery & Automobile, Shenyang 110136, Peoples R China
[3] Chinese Acad Sci, Shenyang Inst Automat, Shenyang 110016, Peoples R China
来源
MECHANICAL, MATERIALS AND MANUFACTURING ENGINEERING, PTS 1-3 | 2011年 / 66-68卷
关键词
Laser Metal Deposition Shaping (LMDS); Rapid prototyping (RP); Metal parts; Layered direct fabrication; System components;
D O I
10.4028/www.scientific.net/AMM.66-68.2202
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The fabrication of metal parts is the backbone of the modern manufacturing industry. Laser forming is the combination of five common technologies: lasers, rapid prototyping (RP), computer-aided design (CAD), computer-aided manufacturing (CAM), and powder metallurgy. The resulting process creates part by focusing an industrial laser beam on the surface of processing workpiece to create a molten pool of metal. A small stream of powdered alloy is then injected into the molten pool to build up the part gradually. By moving the laser beam back and forth and tracing out a pattern determined by a CAD, the solid metal part is fabricated line by line, one layer at a time. By this method, a material having a very fine microstructure due to rapid solidification process can be produced. In the present work, a type of direct laser deposition process, called Laser Metal Deposition Shaping (LMDS), has been employed and developed to fabricate metal parts. The LMDS apparatus consists of four primary components: energy supply system, motion control system, powder delivery system, and computer control system. These components have their specified functions, but work in association with each other.
引用
收藏
页码:2202 / +
页数:2
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