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Proceedings Paper

Three-dimensional laser welding of the anti-explosion loop
Author(s): Kai Chen; Rongshi Xiao; Zhiyong Wang; Tiechuan Zuo
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Paper Abstract

The fillet welding of the locating stands is just a typical three-dimensional laser welding processing. It was just like the fillet welding along the surface of a cylinder shape. Experiment results showed that a successful laser welding should be with some technique and skills. So a special clamp apparatus was made for fixing the parts and keeping them in correct position. The welding parameters were tested and determined in the study. For the main part of welding, 3000W laser power, 3m/mim welding rate, a angle of 15 degree between laser beam and vertical plane were used and had a full penetration of weld bead and a smooth bead surface. For the beginning and the ending part, the ramp function had to be used to overcome the weld defects of burning though and inadequate joint penetration. Also, the spot position at the beginning and the ending in the welding process should be adapted to make a good joint. In order to eliminate the influence of laser induced plasma that produced from the surface of galvanized sheet when it was heated by laser energy, a flow of argon gas with the rate of 10 1/mim as a side gas was employed. The experiment results indicated that the method of a teaching program was not enough for having a good welding quality because of the flutter phenomena by the non-uniform motion of machining head in the processing. Instead of it, the offline program was employed.

Paper Details

Date Published: 12 September 2002
PDF: 4 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482873
Show Author Affiliations
Kai Chen, Beijing Polytechnic Univ. (China)
Rongshi Xiao, Beijing Polytechnic Univ. (China)
Zhiyong Wang, Beijing Polytechnic Univ. (China)
Tiechuan Zuo, Beijing Polytechnic 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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