单点激光冲击精确成形的控制方法研究  

Study on control method of single point laser shock precise forming

作　　者：殷苏民[1] 丁海峰[1] 钱绍祥[1] 

机构地区：[1]江苏大学机械工程学院,镇江212013

出　　处：《机械设计与制造》2009年第2期231-232,共2页Machinery Design & Manufacture

基　　金：国家高技术研究发展计划(863计划)(2002AA421120;2002AA336030);国防航空基金(02H52053)

摘　　要：根据单次冲击304不锈钢矩形薄板得到的激光能量与变形量的关系图,利用最小二乘法进行曲线拟合得到曲线的近似表达式。根据激光冲击成形的原理、特点,建立了激光冲击成形控制系统。冲击过程中,利用控制激光能量得到相应变形量进行多次冲击,并加入实时反馈控制,最终实现板料的单点精确成形。On the basis of the relation plan of laser energy and deformation value ,which was from one Laser shock on 304 stainless steel rectangle sheet metal,the approximate curvilinear expression was gained by using least square to curve fitting. According to the theory and characteristic of laser shock forming,a Laser Shock Forming Control System was established. In the shocking course ,laser energy was controlled to gain relevant deformation value to carry through multi-time shock ,adding real time feedback control, achieving single point precise forming of sheet metal finally.

关 键 词：激光冲击成形 曲线拟合 精确成形 实时反馈控制 

分 类 号：TH16[机械工程—机械制造及自动化]