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Proceedings Paper

Effects on residual stresses of aluminum alloy LC4 by laser shock processing
Author(s): Yong-kang Zhang; Jin-zhong Lu; De-jun Kong; Hui-xue Yao; Chao-jun Yang
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Paper Abstract

The influences of processing parameters on laser-induced shock waves in metal components are discussed and analyzed. The effects of different parameters of laser shock processing (LSP) on residual stress of aerospace aluminum alloy LC4 were investigated. LSP was performed by using an Nd: glass phosphate laser with 23 ns pulse width and up to ~45 J pulse energy at power densities above GW/mm-2. Special attention is paid to the residual stresses from laser shock processing. Modification of microstructure, surface morphology by laser shock processing is also discussed. Results to date indicate that laser shock processing has great potential as a means of improving the mechanical performance of components.

Paper Details

Date Published: 14 November 2007
PDF: 6 pages
Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67223V (14 November 2007); doi: 10.1117/12.783560
Show Author Affiliations
Yong-kang Zhang, Jiangsu Univ. (China)
East China Univ. of Science and Technology (China)
Jin-zhong Lu, Jiangsu Univ. (China)
De-jun Kong, Jiangsu Univ. (China)
Hui-xue Yao, Jiangsu Univ. (China)
Chao-jun Yang, Jiangsu Univ. (China)


Published in SPIE Proceedings Vol. 6722:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies

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