Technological study on high power CO2 laser cutting of small hole on middle-thick steel plates

Aiming at the cutting quality problems of high power CO2 laser cutting of small hole on middle-thick steel plates,the cutting technology of small hole on middle-thick steel plates was studied by using Rofin DC025 slab CO2 laser cutting system.At the same time,the effects of laser power,cutting speed and oxygen pressure on cutting quality were also studied.The key effect of temperature on cutting quality was analyzed.The results show that the best cutting quality can be obtained at the conditions of laser power 950W,cutting speed 1.0m/min,the oxygen pressure 1.0×105Pa.The cutting quality problems of high power CO2 laser cutting of small hole on middle-thick steel plates have been solved.