摘要
从激光脉冲空问特性入手，提出Ｍ值对精密激光加工的影响。理论分析和试验表明，对一般金属材料而言，Ｍ＞７对提高加工精度是有利的。
Starting with the space characteristic of laser pulse, this paper puts forward the value M affecting precision laser machining. Theoretical analysis and experiments have proved that the value M>7 is suitable to common metals to improve the accuracy of laser machining.
基金
国家自然科学基金
关键词
激光脉冲
空间特性
激光
加工精度
激光器
space characteristic of laser pulse
laser machining
machining accuracy
