一、引言自从六十年代初激光问世以来,人们就将激光技术用于材料加工。经过二十几年的研究与应用实践,激光加工技术得到飞速发展。目前在国外已形成一门新的加工产业。在一些工业部门正迅速改变许多传统工艺的面貌。一些先进国家制订了行之有效的长远规划和近期计划,许多国家都设立各种规模的现代化激光加工中心(站)。从原件(甚至原材料)到设计、加工、装配、调试全部配套。激光加工技术应用面广,经济效益高,正越来越受到人们的重视,在整个加工业中发挥着越来越重要的作用。当前的激光加工主要指用高功率激光对工业用零、部件进行切割、焊接、打孔、刻槽、划 I. Introduction Since the advent of lasers in the early 1960s, people have used laser technology for material processing. After twenty years of research and application practice, laser processing technology has been rapid development. At present, a new processing industry has been formed in other countries. In some industries, the face of many traditional crafts is rapidly changing. Some advanced countries have formulated effective long-term plans and short-term plans. Many countries have established modern laser processing centers (stations) of various sizes. From the original (or even raw materials) to the design, processing, assembly, commissioning of all supporting. Laser processing technology is widely used, high economic efficiency, is more and more people’s attention, the entire processing industry is playing an increasingly important role. The current laser processing mainly refers to the use of high-power laser zero, the components for industrial cutting, welding, drilling, notching, planning