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巴黎 P.M.Fourt 材料研究中心为了提高疏松材料的密度,或增大多孔材料表面的密度,利用激光冲击波产生压缩应力的方法正在开发中。冲击波由高功率固体激光产生,能量数十焦耳,每隔30s 产生100ps～100ns 的短脉冲。这种激光冲击法与过去的锤击法相比,有若干优点,即不污染材料表面,处理均匀,容易控制,不会使正常形状的部件表面变形,基本上可作到全面处理,处理深度达1.5mm,可实现自动化。俄亥俄州的华格纳激光技术公司正对此法
Paris P.M.Fourt Materials Research Center In order to increase the density of loose materials, or increase the density of porous materials, the use of laser shock wave compression stress is being developed. The shock wave is generated by a high-power solid-state laser with tens of joules of energy producing short pulses of 100 ps to 100 ns every 30 seconds. Compared with the past hammering method, this laser impacting method has several advantages. That is, it does not pollute the surface of the material, is uniform in treatment and easy to control, and can not deform the surface of a normally shaped part, and can basically be fully processed and has a depth of treatment of up to 1.5mm, can be automated. Wagner Laser Technologies of Ohio is working on this method