水导激光加工CFRP质量和效率实验研究

Experimental study of quality and efficiency of CFRP processed by water-jet guided lase

为实现碳纤维增强复合材料的高质高效切割,采用水导激光加工技术对CFRP进行微槽加工,通过正交实验法、单因素实验法研究了激光功率、扫描速度和扫描路径重叠率对热影响区宽度和材料去除率的影响规律,并以此为目标进行了优化。结果表明:激光功率、扫描路径重叠率对热影响区宽度和材料去除率的影响显著;当激光功率35 W、扫描速度4 mm/s和扫描路径重叠率40%时,热影响区宽度为184.484μm,材料去除率为0.068 mm ^(3)/s,能获得较小的热影响区宽度和较高的加工效率。

In order to achieve high-quality and high-efficiency cutting of carbon fiber reinforced composites,water-jet guided laser processing is used for the CFRP microgroove processing.The influence of the laser power,scanning speed and scanning path overlap rate on the width of the heat-affected zone and the material removal rate are investigated by the orthogonal and one-factor experimental methods and optimized with this goal in mind.The results show that the laser power and the overlap rate of the scanning path have a significant effect on the width of the heat-affected zone and the material removal rate.When the laser power is 35 W,the scanning speed is 4 mm/s and the scanning path overlap rate is 40%,the width of the heat-affected zone is 184.484μm,and the material removal rate is 0.068 mm ^(3)/s,which can obtain smaller width of the heat-affected zone and higher processing efficiency.