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Proceedings Paper

Laser direct forming of metal components: technical characterizations
Author(s): Yanmin Li; Haiou Yang; Xin Lin; Weidong Huang; Jianguo Li; Yaohe Zhou
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Paper Abstract

Laser direct forming experiments were carried out systematically with 316L stainless steel and nickel-base alloy to investigate the technical characterizations deeply and some metal components were fabricated. It is found that, the height of single cladding layer, which was affected by almost all the processing parameters and was quite hard to be precisely controlled, was very important to laser direct forming for not only the accuracy of vertical direction but also the fabrication stability. The variation of the width of single clad, which was mainly affected by laser power, spot diameter and scanning velocity, was similar to that in laser surface melting. The surface quality was another important characterization for laser direct forming and was remarkably affected by oxidation and powder attachment. In order to improve the surface quality, the flow flux ofshielding gas should not less than 10l/mm.

Paper Details

Date Published: 12 September 2002
PDF: 8 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482924
Show Author Affiliations
Yanmin Li, Shanghai Jiaotong Univ. (China)
Haiou Yang, Northwestern Polytechnical Univ. (China)
Xin Lin, Northwestern Polytechnical Univ. (China)
Weidong Huang, Northwestern Polytechnical Univ. (China)
Jianguo Li, Shanghai Jiaotong Univ. (China)
Yaohe Zhou, Shanghai Jiaotong Univ and Northwestern Polytechnical Univ. (China)

Published in SPIE Proceedings Vol. 4915:
Lasers in Material Processing and Manufacturing
ShuShen Deng; Tatsuo Okada; Klaus Behler; XingZong Wang, Editor(s)

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