激光冲击波技术在金属表面改性和成形中的应用

在对激光冲击强化技术的原理、特点及工程应用须解决的关键问题进行系统分析的基础上,介绍了激光冲击波技术在金属板材成形方面的最新研究进展：激光冲击成形和激光喷丸成形,对激光冲击成形和激光喷丸成形的机理、技术特点及国内外的研究现状进行了综述,并对今后的应用前景和发展趋势作了分析.

Application of Laser-induced Shock Wave in Surface Modification and Forming of Sheet Metal

With the development of high power short-pulse laser technology,laser-induced high amplitude shock wave has been widely used in the inertial confinement fusion,surface modification of sheet metal and simulation of hypervelocity impact etc.Laser shock processing(LSP) is a surface modification technique,which uses laser-induced shock pressure to improve the materials surface hardness,wear resistance and corrosion resistance by applying a residual compressive stress in the surfaces.After systematically analyzing the mechanism,characteristics of LSP and some key technique problems which have to be solved in engineering applications of laser shock processing,the advances on laser-induced shock wave in sheet metal forming fields was introduced: laser shock forming and laser peen forming,as well as the forming mechanism,technological characteristics and research status were described respectively.Also,the practical prospect and development about laser shock forming and laser peen forming were analyzed.