以碟式激光器为光源对象,通过激光切割的方法对试验装置进行延迟调节,获得数控控制系统与激光控制系统之间的延时值,进而实现了二者的同步以保证系统的高功率激光切割质量。介绍了基于速度控制的激光功率控制原理与实现方法,实现了功率的实时调节与闭环控制。给出了一种1.0 mm厚高强钢HC1030/1300 MS的高速激光切割效果,进行了边部热影响区及毛刺测试,获得了满足用户要求的切割质量。对0.7~2.0 mm汽车用钢进行了激光切割研究,结果表明,板厚随激光能量发生线性变化。 The laser is used as the light source, and the delay of the test device is adjusted by the laser cutting method to obtain the delay value between the numerical control system and the laser control system, so as to realize the synchronization between the two to ensure the high-power laser cutting of the system quality. The principle and realization method of laser power control based on speed control are introduced, real-time power regulation and closed-loop control are realized. A high-speed laser cutting effect of HC1030 / 1300 MS high-strength steel of 1.0 mm thick was given. The heat-affected zone on the edge and the burr test were obtained, and the cutting quality to meet the user’s requirements was obtained. Laser cutting of 0.7-2.0 mm automotive steels was carried out. The results show that the thickness of the plates varies linearly with the laser energy.