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Proceedings Paper

Experimental investigation of efficiency of drilling with ultrashort-pulse laser in water
Author(s): Jingzhang Lin; Kecheng Yang; Rongqing Xu; Min Xia; Tao Huang
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Paper Abstract

In this paper, we adopt YAG Q-switch double frequency solid state laser to drill hole in the water and air on three kinds of material: stainless steel, yellow copper and purple copper separately. The results show the differences in the water and air by comparing. At last, we qualitatively and quantitatively analyze the mechanism of interaction for laser processing in the water. Put forward the feasibility and superiority of the ultra short pulse laser processing underwater. The primary parameters of the laser: the width of pulse 10—100ns; wavelength 1.06m, 0.53?m; the energy of single pulse 0---100mJ; The work piece is placed underwater close to the water surface about 0. 1—2cm, focus distance lens f=60mm, the water is tap water, the thickness of work piece is less than 1mm. The laser with different laser parameters processes the work pieces. The results of the above experinlents indicate that the efficiency of drilling hole in the water is much higher than that in the air. And the quality and sharp of the hole processed is much better than in the air. The best power density of drilled hole in the by laser is mainly determined by material characteristics and the parameters of laser.

Paper Details

Date Published: 12 September 2002
PDF: 6 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482864
Show Author Affiliations
Jingzhang Lin, Huazhong Univ. of Science and Technology (China)
Kecheng Yang, Huazhong Univ. of Science and Technology (China)
Rongqing Xu, Zhenjiang Univ. of Technology (China)
Min Xia, Huazhong Univ. of Science and Technology (China)
Tao Huang, Huazhong Univ. of Science and Technology (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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