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Proceedings Paper

Effects of processing parameters on mode and stability of laser welding
Author(s): Xudong Zhang; Wuzhu Chen; Jialie Ren; Yong Wang; Guoqing Huang; Hongjun Zhang
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Paper Abstract

The authors have found a third process--unstable-mode welding (UMW) under a certain condition, besides already known stable deep penetration welding (DPW) and stable heat conduction welding (HCW) during high-power CO2 laser welding. UMW has basic feature that the two welding modes (DPW and HCW) appear intermittently, with the penetration depth and weld width jumping between large and small grades. In this paper, the physical phenomena, especially the signal of plasma during welding and the weld-forming of three kinds of process have been investigated. Effects of welding parameters (focal position, laser power and travel speed) on laser welding mode and weld-forming have been comprehensively studied. Double-U curves of laser welding mode transition have been obtained, which indicate the parameter ranges of the three monitored welding process.

Paper Details

Date Published: 8 April 1996
PDF: 7 pages
Proc. SPIE 2703, Lasers as Tools for Manufacturing of Durable Goods and Microelectronics, (8 April 1996); doi: 10.1117/12.237746
Show Author Affiliations
Xudong Zhang, Tsinghua Univ. (China)
Wuzhu Chen, Tsinghua Univ. (China)
Jialie Ren, Tsinghua Univ. (China)
Yong Wang, Tsinghua Univ. (China)
Guoqing Huang, Tsinghua Univ. (China)
Hongjun Zhang, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 2703:
Lasers as Tools for Manufacturing of Durable Goods and Microelectronics
Jan J. Dubowski; Jyotirmoy Mazumder; Leonard R. Migliore; Chandrasekhar Roychoudhuri; Ronald D. Schaeffer, Editor(s)

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