Scholarlink

<p>The development of additive manufacturing (AM) technique has enabled unprecedented flexibility in the design and fabrication of complex metal components. However, the AM process is prone to defects like poor surface quality, high porosity, and tensile residual stress (TRS), which adversely affect the mechanical performance and service life of the fabricated components. Laser shock peening (LSP) is an innovative surface plastic strengthening technique that can effectively introduce compressive residual stresses (CRS) and refine microstructure, thereby mitigating these shortcomings. This paper first presents the principle and development of LSP and its research advancements in AM metals. It then systematically elucidates the effects of LSP in AM metals from two perspectives: the LSP post-treatment process and the AM + LSP hybrid process. Additionally, some investigations of LSP applications on specialized AM structures are introduced. Through a comprehensive review of research progress and technical challenges, research prospects are provided on theory, equipment, processes, performance evaluation, and technical standards to clarify the theoretical support and key technologies for future engineering applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Laser shock peening in additively manufactured metals

  • 期刊论文

  • 发表日期：

    2026年1月4日

查看全文
  • Peiwen Xu,
  • Li Yan,
  • Xiangfan Nie,
  • Shixi Li,
  • Hongbing Li,
  • Weifeng He

摘要

The development of additive manufacturing (AM) technique has enabled unprecedented flexibility in the design and fabrication of complex metal components. However, the AM process is prone to defects like poor surface quality, high porosity, and tensile residual stress (TRS), which adversely affect the mechanical performance and service life of the fabricated components. Laser shock peening (LSP) is an innovative surface plastic strengthening technique that can effectively introduce compressive residual stresses (CRS) and refine microstructure, thereby mitigating these shortcomings. This paper first presents the principle and development of LSP and its research advancements in AM metals. It then systematically elucidates the effects of LSP in AM metals from two perspectives: the LSP post-treatment process and the AM + LSP hybrid process. Additionally, some investigations of LSP applications on specialized AM structures are introduced. Through a comprehensive review of research progress and technical challenges, research prospects are provided on theory, equipment, processes, performance evaluation, and technical standards to clarify the theoretical support and key technologies for future engineering applications.