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Proceedings Paper

Nd:YAG laser welding of aluminum alloy assisted by high-peak pulsed lasers
Author(s): Toshihiko Ooie; Akihiro Utsumi; Tetsuo Yano
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Paper Abstract

Nd:YAG laser welding of an aluminum alloy assisted by high-peak pulsed lasers such as excimer and Q-switched Nd:YAG laseers was investigated. In this novel laser hybrid welding, a plasma induced by a high-peak power laser absorbs the Nd:YAG laser energy and transmits it to a work piece. In the laser welding of the aluminum alloy using the Nd:YAG laser of which maximu power was 6 kW, the heat input and the penetration depth increased by 20% and 8%, respectively, by using simultaneous irradiation of the excimer laser of which average power was only 16 W. According to the optical emission of the plasmas, not only KrF excimer laser but also 2nd harmonic of a Q-switched Nd:YAG laser is applicable for the laser hybrid welding as the high-peak pulsed laser.

Paper Details

Date Published: 3 March 2003
PDF: 5 pages
Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); doi: 10.1117/12.497779
Show Author Affiliations
Toshihiko Ooie, National Institute of Advanced Industrial Science and Technology (Japan)
Akihiro Utsumi, National Institute of Advanced Industrial Science and Technology (Japan)
Tetsuo Yano, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 4831:
First International Symposium on High-Power Laser Macroprocessing
Isamu Miyamoto; Kojiro F. Kobayashi; Koji Sugioka; Reinhart Poprawe; Henry Helvajian, Editor(s)

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