266nm紫外固体激光切割碳纤维复合材料的实验研究  

Experimental investigation on 266nm ultraviolet solid-state laser cutting of carbon fiber reinforced plastics

作　　者：齐立涛[1] 刘凤聪 张耀东 QI Litao;LIU Fengcong;ZHANG Yaodong(Institute of Advanced Laser Manufacturing, Heilongjiang University of Science and Technology, Harbin 150022, China;School of Mechanical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China)

机构地区：[1]黑龙江科技大学激光先进制造研究所,哈尔滨150022 [2]黑龙江科技大学机械工程学院,哈尔滨150022

出　　处：《激光技术》2022年第3期402-407,共6页Laser Technology

基　　金：黑龙江省自然科学基金资助项目(E2017060);黑龙江省省属高等学校基本科研业务费科研项目(2018-KYYWF-1168)。

摘　　要：为了研究266nm紫外固体激光切割碳纤维增强复合材料(CFRP)的工艺规律,采用单因素实验法、正交实验法和多元线性回归分析法,进行了266nm紫外固体激光切割CFRP的实验研究,得出了激光脉冲能量、扫描速率对切缝宽度和热影响区宽度的影响规律。结果表明,切缝宽度和热影响区宽度随激光脉冲能量的增大而增大,随扫描速率的增大而减小;实验中最小热影响区宽度为82μm,最小切缝宽度为50μm;激光扫描速率对切缝宽度影响的显著性水平更高,而激光脉冲能量对热影响区宽度影响的显著性水平更高;所获得的经验公式能够定量描述切缝宽度、热影响区宽度与激光脉冲能量、扫描速率之间的关系。本研究对266nm紫外固体激光切割CFRP的应用具有一定的参考意义。In order to investigate the process of 266nm ultraviolet solid-state laser cutting of carbon fiber reinforced plastics(CFRP).The experiment on 266nm ultraviolet solid-state laser cutting CFRP were carried out by single factor experiment,orthogonal experiment,and multiple linear regression analysis,respectively.The effects of laser energy and scanning speed on the width of slit and the width of heat-affected zone were obtained.The results show that with the increasing of laser energy,both the width of the slit and the width of the heat-affected zone increase accordingly.With the increasing of scanning speed,both the width of slit and the width of heat-affected zone decrease.In the experiment,the minimum width of heat-affected zone is 82μm,and the minimum width of slit is 50μm.The influence of laser scanning speed on the width of the slit is more significant,whereas the influence of laser energy on the width of the heat-affected zone is more significant.The empirical formula can quantitatively describe the relationship among the width of the slit,the width of the heat-affected zone,and the laser energy and scanning speed.It has a reference significance for the further research and industrial application of 266nm ultraviolet solid-state laser cutting of CFRP.

关 键 词：激光技术 工艺规律 正交实验 266nm紫外固体激光 激光切割 碳纤维增强复合材料切割 

分 类 号：TG485[金属学及工艺—焊接]