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<p>Water jet–guided laser processing technology (WJGL) has gradually entered the field of high precision manufacturing due to its excellent processing quality. In this study, the pressure signals of plasma shock waves during laser ablation were collected to elucidate the mechanism by which mechanical impact influences machining quality. It was found that the removal of carbon fiber–reinforced composites, characterized by their non-homogeneity and significant differences in two-phase thermal properties, relies not only on instantaneous high-temperature gasification decomposition but also on an impact-induced peeling mechanism of the brittle resin layer. This mechanism can reduce the adsorption of the softened layer and enhance machining precision. In this paper, the impact mechanism caused by jet is taken as a breakthrough point, and the cognition of the function of jet is supplemented by the current mechanism theory, so as to improve the mechanism study of this technology from the phenomenon to the theoretical level.</p>

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Mechanism analysis of blasting impact mechanism in the water jet–guided laser processing for aerospace composite materials

  • 期刊论文

  • 发表日期：

    2025年6月17日

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  • Yinuo Zhang,
  • Xinfeng Wang,
  • Feng Guo,
  • Wenxiong Shi,
  • Xiqiang Yan,
  • Jin Zhang,
  • Jibin Zhao,
  • Hongchao Qiao

摘要

Water jet–guided laser processing technology (WJGL) has gradually entered the field of high precision manufacturing due to its excellent processing quality. In this study, the pressure signals of plasma shock waves during laser ablation were collected to elucidate the mechanism by which mechanical impact influences machining quality. It was found that the removal of carbon fiber–reinforced composites, characterized by their non-homogeneity and significant differences in two-phase thermal properties, relies not only on instantaneous high-temperature gasification decomposition but also on an impact-induced peeling mechanism of the brittle resin layer. This mechanism can reduce the adsorption of the softened layer and enhance machining precision. In this paper, the impact mechanism caused by jet is taken as a breakthrough point, and the cognition of the function of jet is supplemented by the current mechanism theory, so as to improve the mechanism study of this technology from the phenomenon to the theoretical level.