摘要
使用532 nm皮秒激光对芳纶纤维增强树脂基复合材料(AFRP)进行表面预处理,以提高其胶接接头的剪切强度。首先讨论激光去除ARFP表面树脂的最佳工艺窗口,并从机械连接和化学连接的角度分析激光处理可提升接头剪切强度的原因。其次探究凹槽间距、刻写次数和扫描角度对接头剪切强度的影响。结果表明,激光去除AFRP表面树脂后接头剪切强度较原始表面提高了30%,刻写凹槽后,较原始表面可提高75%。此研究可为AFRP修补以及特种装备的应用提供一定的指导意义。
This study investigates the enhancement of shear strength in aramid fiber-reinforced polymer(AFRP)composite joints through surface pretreatment using a 532 nm picosecond laser.The paper first discusses the optimal process window for laser removal of resin from the ARFP surface and analyzes the reasons why laser treatment can enhance the shear strength of the joints from the perspective of mechanical and chemical joining.Subsequently,the etching of notches on the AFRP surface was continued and the effects of notch spacing,number of etchings and scanning angle on the shear strength of the joint were investigated.The results showed that the joint shear strength was improved by 30%compared to the original surface after laser removal of resin from the AFRP surface,and by 75%compared to the original surface after etching the notches.These results offer valuable insights for the repair of AFRP structures and their application in specialized equipment.
作者
李倩靓
刘可欣
金聪
汪于涛
王丽
张骆
何宗泰
翟中生
杨奇彪
刘顿
Li Qianliang;Liu Kexin;Jin Cong;Wang Yutao;Wang Li;Zhang Luo;He Zongtai;Zhai Zhongsheng;Yang Qibiao;Liu Dun(Laser Group,School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,Hubei,China;Hubei Key Laboratory of Modern Manufacturing Quality Engineering,School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,Hubei,China;Shanghai Key Laboratory of Laser Beam Micro Processing,Shanghai Institute of Laser Technology,Shanghai 200233,China)
出处
《应用激光》
CSCD
北大核心
2024年第9期113-123,共11页
Applied Laser
基金
省科技厅科研计划项目-重点研发计划(ZDZX2020000013)。
