Fundamental study about molten metal of laser cutting

Takashi Fushimi; Hiromasa Nakajima; Hideyuki Horisawa; Shigeru Yamaguchi; Nobuo Yasunaga; Tomoo Fujioka

doi:10.1117/12.405757

6 November 2000 Fundamental study about molten metal of laser cutting

Takashi Fushimi, Hiromasa Nakajima, Hideyuki Horisawa, Shigeru Yamaguchi, Nobuo Yasunaga, Tomoo Fujioka

Proceedings Volume 4088, First International Symposium on Laser Precision Microfabrication; (2000) https://doi.org/10.1117/12.405757
Event: First International Symposium on Laser Precision Microfabrication (LPM2000), 2000, Omiya, Saitama, Japan

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.

Citation Download Citation

Takashi Fushimi, Hiromasa Nakajima, Hideyuki Horisawa, Shigeru Yamaguchi, Nobuo Yasunaga, and Tomoo Fujioka "Fundamental study about molten metal of laser cutting", Proc. SPIE 4088, First International Symposium on Laser Precision Microfabrication, (6 November 2000); https://doi.org/10.1117/12.405757

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