中文摘要：

为了解决金属板料在装配过程中经常发生变形而产生装配困难的问题,尤其大型或超大型结构件的变形问题,在分析传统校形方法特点的基础上,提出一种基于激光冲击波诱导残余应力的金属板料校形技术.对激光冲击波金属板料校形系统的组成、工作原理进行了阐述.以NA：YAG激光器为基础构建校形试验系统,对0.6 mm厚的金属铝板的进行了校直试验,并对校形的影响因素等进行理论分析.结果表明,通过激光冲击校正后,板料从凹陷状态恢复平直状态,平面度小于0.05 mm,获得了理想的校直效果.板料的校形量随着残余应力的深度和大小的增大而增大,即通过控制激光功率密度的变化,可以调整校形量的大小,达到精确校形的目的.

英文摘要：

To address the deformation problem of sheet metal generated in assembly process,especially in large or super large pieces of the structure,based on analysis of the characteristics of the traditional sizing method,a new sizing method based on laser shock wave stress was proposed.The principle and the components of the system were described.The test system was built with NA： YAG laser device,and the aluminium sheet with thickness of 0.6 mm was corrected by the system successfully.The influences of the sizing factors were analyzed theoretically.The results show that the sheet resume straight from the state of depression after correction by laser shock,and flatness is less than 0.05 mm.The deformation of the sheetmetal increases with the depth and magnitude of residual stress.To achieve accurate sizing purpose,the deformation of sizing can be adjusted by controlling the laser power density.