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.

With the disk laser as an optical source,the delay time of the experimental device is set through the laser cutting method.The delay time between the numerical control system and the laser control system is studied,thus the synchronization is achieved in order to guarantee the cutting quality.The theory and implementation of laser power control by the speed are studied to achieve the real-time adjustment and closed-loop control of power .The cutting qualities of HC1030/1300 MS high-stress steel of 1 mm in thickness are presented which are cut under the real time synchronous condition.Hot affected zone and burr edge are tested which can meet users requirements.Besides,the study on the laser cutting of car-body steel from 0.7 mm to 2.0 mm in thickness shows that laser energy is linear with respect to the thickness of plate.