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Proceedings Paper

Mechanical effects during pulsed laser and metals interaction in glycerol-water mixtures
Author(s): Xiu Mei Liu; Jie He; Jian Lu; Xiao Wu Ni
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Paper Abstract

In order to study the effect of viscosity on the mechanical effects during laser-metal interaction, the transient forces loading on a metal plate in various glycerol-water mixtures are investigated by a fiber-optic diagnostic technique based on optical beam deflection (OBD). The experimental results show that a target in glycerol mixtures is impacted in turn by laser-plasma ablation force and high-speed liquid-jet impulse induced by bubbles collapse in the vicinity of a solid boundary. The amplitudes of the two forces decrease monotonously with less laser energy. Furthermore, strong differences of mechanical effects are observed in the glycerol mixtures and water. Viscosity has the effect of dampening mechanical energy. And increased viscosity is seen to decrease the amplitudes of the two forces but increase bubble life-time.

Paper Details

Date Published: 4 January 2008
PDF: 6 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 682513 (4 January 2008); doi: 10.1117/12.754504
Show Author Affiliations
Xiu Mei Liu, Nanjing Univ. of Science and Technology (China)
Jie He, Nanjing Univ. of Science and Technology (China)
Jian Lu, Nanjing Univ. of Science and Technology (China)
Xiao Wu Ni, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

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