APPLIED LASER, Volume. 44, Issue 9, 113(2024)

Pretreatment of Aramid Fiber Reinforced Polymer Composites for Surface Bonding by Picosecond Laser Processing

Li Qianliang1,2, Liu Kexin1,2, Jin Cong1,2, Wang Yutao3, Wang Li3, Zhang Luo1,2、*, He Zongtai1,2, Zhai Zhongsheng1,2, Yang Qibiao1,2, and Liu Dun1,2
Author Affiliations
  • 1Laser Group, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, Hubei, China
  • 2Hubei Key Laboratory of Modern Manufacturing Quality Engineering,School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, Hubei,China
  • 3Shanghai Key Laboratory of Laser Beam Micro Processing, Shanghai Institute of Laser Technology, Shanghai 200233, China
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    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.

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    Li Qianliang, Liu Kexin, Jin Cong, Wang Yutao, Wang Li, Zhang Luo, He Zongtai, Zhai Zhongsheng, Yang Qibiao, Liu Dun. Pretreatment of Aramid Fiber Reinforced Polymer Composites for Surface Bonding by Picosecond Laser Processing[J]. APPLIED LASER, 2024, 44(9): 113

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    Paper Information

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    Received: Feb. 20, 2023

    Accepted: Jan. 17, 2025

    Published Online: Jan. 17, 2025

    The Author Email: Zhang Luo (502200005@hbut.edu.cn)

    DOI:10.14128/j.cnki.al.20244409.113

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