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Velocity Distribution of the Powder Particles in Laser Cladding

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Abstract

The velocity distribution of powder particles in the laser cladding has an important influence on the motion of liquid in the laser molten pool. In this paper, considering the carrier gas leaving the nozzle to be a steady jet, the velocity distribution of the powder particles is obtained, which can be used as input data in the modelling of the laser cladding.

Newport宣传-MKS新实验室计划
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中图分类号:TN24

所属栏目:Laser Aplications

基金项目:Supported by the Yunnan Science Foundation (970054) and the Science Foundation of the Education Department of Yunnan Provice (0111053).

收稿日期:2001-09-04

修改稿日期:2001-11-19

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作者单位    点击查看

FU Yunchang(伏云昌):Université de Bourgogne, IUT-LTm, 12 rue de la Fonderie, F-71200 Le Creusot, FranceKunming University of Science and Technology, Kunming 650093, China
B. Martin:Université de Bourgogne, IUT-LTm, 12 rue de la Fonderie, F-71200 Le Creusot, France
A. Loredo:Université de Bourgogne, IUT-LTm, 12 rue de la Fonderie, F-71200 Le Creusot, France
A. B. Vannes:Ecole Centrale de Lyon, IFOS-MMP, UMR 5621, F-69131 Ecully, France
LI Junchang(李俊昌):Kunming University of Science and Technology, Kunming 650093, China

备注:FU Yunchang an associate professor, graduated from Tsinghua University in 1988, is engaged in teaching of university physics and has been making researches on laser-materials interaction. He has published 15 papers.

【1】Li Junchang. The Optimistic Control of The Laser Heat Treatment. Metallurgical Industry Press, 1995 (in Chinese)

【2】A. B. Vannes. High power laser and material treatment Presses Polytechniques et Universitaires Romandes, 1991 (in French)

【3】J. M. Jouvard, D. F. Grevey, F. Lemoine et al.. Continuous wave Nd:YAG laser cladding modeling: a physical study of track creation during low power processing. Journal of Laser Applications, 1997, 9:43~50

【4】B. Ollier, N. Pirch, E. W. Kreutz. A numerical model of the one-step laser cladding process. Laser and Photons, 1996, 1(1):3~13 (in Chinese)

【5】A. F. A. Hoadley, M. Rappaz. A thermal model of laser cladding by powder injection. Metallurgical Transactions B, 1992, 23:631~642

【6】M. Picasso, C. F. Marsden, J.-D. Wagnière et al.. A simple but realistic model for laser cladding. Metallurgical Transactions B, 1994, 25:281~291

【7】M. Picasso, M. Rappaz. Laser-powder-material interactions in the laser cladding process. Journal de Physique IV, Colloque C4, Supplèment au Journal de Physique Ⅲ, Vol.4, 1994 (in French)

【8】M. Picasso, A. F. A. Hoadley. Finite element simulation of laser surface treatments including convection in the melt pool. Int. J. Num. Meth. Heat Fluid Flow, 1994, 4:61~83

【9】M. Rappaz. High Power Laser and Material Treatment. Presses Polytechniques et Universitaire Romandes 1991, Chap.17, edited by A. B. Vannes (in French)

【10】Jehnming Lin. Numerical simulation of the focused powder streams in coaxial laser cladding. Journal of Materials Processing Technology, 2000, 105:17~23

【11】G. K. Batchelor. An Introduction to Fluid Dynamics. Cambridge University Press, 1967

引用该论文

FU Yunchang(伏云昌),B. Martin,A. Loredo,A. B. Vannes,LI Junchang(李俊昌). Velocity Distribution of the Powder Particles in Laser Cladding[J]. 中国激光(英文版), 2002, 11(6): 469-474

FU Yunchang(伏云昌),B. Martin,A. Loredo,A. B. Vannes,LI Junchang(李俊昌). Velocity Distribution of the Powder Particles in Laser Cladding[J]. Chinese Journal of Lasers B, 2002, 11(6): 469-474

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