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Proceedings Paper

Fundamental study about molten metal of laser cutting
Author(s): Takashi Fushimi; Hiromasa Nakajima; Hideyuki Horisawa; Shigeru Yamaguchi; Nobuo Yasunaga; Tomoo Fujioka
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Paper Abstract

This study, the action of molten metal in the kerf using oxygen and an assist gas was observed with the high speed digital CCD camera. The ejection of molten metal is changed direction in every 2ms. Case of the optimum condition speed cutting (1800mm/min), the molten metal moves straight down to bottom of the kerf. Case of the high speed cutting (2800mm/min), case of the mass molten metal stays in the kerf, dross appeared underneath the workpiece. And case of ejection angle is over the 45 degree, dross appeared underneath the workpiece. Mass molten metal and small molten metal is every pulsed.

Paper Details

Date Published: 6 November 2000
PDF: 3 pages
Proc. SPIE 4088, First International Symposium on Laser Precision Microfabrication, (6 November 2000); doi: 10.1117/12.405757
Show Author Affiliations
Takashi Fushimi, Tokai Univ. (Japan)
Hiromasa Nakajima, Tokai Univ. (Japan)
Hideyuki Horisawa, Tokai Univ. (Japan)
Shigeru Yamaguchi, Tokai Univ. (Japan)
Nobuo Yasunaga, Tokai Univ. (Japan)
Tomoo Fujioka, Tokai Univ. (Japan)

Published in SPIE Proceedings Vol. 4088:
First International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Koji Sugioka; Thomas W. Sigmon, Editor(s)

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