Laser shock wave and its applications

Chaojun Yang; Yongkang Zhang; Jianzhong Zhou; Fang Zhang; Aixin Feng

doi:10.1117/12.783036

14 November 2007 Laser shock wave and its applications

Chaojun Yang, Yongkang Zhang, Jianzhong Zhou, Fang Zhang, Aixin Feng

Proceedings Volume 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 67221X (2007) https://doi.org/10.1117/12.783036
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

The technology of laser shock wave is used to not only surface modification but also metal forming. It can be divided into three parts: laser shock processing, laser shock forming (LSF) and laser peenforming(LPF). Laser shock processing as a surface treatment to metals can make engineering components have a residual compressive stress so that it obviously improves their fatigue strength and stress corrosion performances, while laser shock forming (LSF) is a novel technique that is used in plastic deformation of sheet metal recently and Laser peen forming (LPF) is another new sheet metal forming process presented in recent years. They all can be carried out by a high-power and repetition pulse Nd:Glass laser device made by Jiangsu University. Laser shock technology has characterized of ultrahigh pressure and high strain rate (10⁶ - 10⁷s^-1). Now, for different materials, we are able to form different metals to contours and shapes and simultaneity leave their surfaces in crack-resistant compressive stress state. The results show that the technology of laser shock wave can strengthen surface property and prolong fatigue life and especially can deform metals to shapes that could not be adequately made using conventional methods. With the development of the technology of laser shock wave, the applied fields of laser will become greater and greater.

Citation Download Citation

Chaojun Yang, Yongkang Zhang, Jianzhong Zhou, Fang Zhang, and Aixin Feng "Laser shock wave and its applications", Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67221X (14 November 2007); https://doi.org/10.1117/12.783036

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KEYWORDS

Laser applications

Laser processing

Metals

Pulsed laser operation

High power lasers

Corrosion

Manufacturing

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