研究了一种多层金属复合板激光冲击柔性微成形(LSFF)的新工艺,验证了该工艺的可行性, 发现在合适的工艺参数下,成形件没有层裂或裂纹等缺陷。研究结果显示, 在LSFF下, 镍/铜/镍金属复合板的成形深度介于铜箔和镍箔的之间,且成形深度随着激光能量和激光冲击次数的增加而增加。成形件表面发生了粗化现象, 且其粗糙度随着激光能量的增加而增加。

A new technique on laser-shock flexible micro-forming (LSFF) of multilayer-metal composite sheets is investigated, and its feasibility is verified. It is found that there is no delamination or cracks in the formed parts under appropriate process parameters. The study results show that the forming depth of Ni/Cu/Ni metal composite sheets under LSFF is between the forming depth of copper foils and that of nickel foils, which increases with the increase of the laser energy and laser impact times. Surface roughening happens in the formed parts and the roughness increases with the increase of the laser energy.