Laser Metal Deposition Shaping System for Direct Fabrication of Parts

Abstract:

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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.

Info:

Periodical:

Edited by:

Honghua Tan

Pages:

2202-2207

DOI:

10.4028/www.scientific.net/AMM.66-68.2202

Citation:

K. Zhang et al., "Laser Metal Deposition Shaping System for Direct Fabrication of Parts", Applied Mechanics and Materials, Vols. 66-68, pp. 2202-2207, 2011

Online since:

July 2011

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Price:

$35.00

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