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<p>Shot peen forming is widely used to shape large aerospace components, such as aircraft wing skins, owing to its mold-free and highly flexible nature. However, the incremental deformation characteristic and the complex target profiles of peened components make controlling forming accuracy a significant challenge. This paper focuses on the causes and influences of incremental deformation in the peen forming process. It first reviews several key areas affecting accuracy: the uncertainties inherent in the process, the models relating forming parameters to results, the methods for process monitoring and result analysis, and the strategies for parameter planning. Based on this review, future research directions to enhance accuracy control are proposed. Finally, a potential stepwise correction methodology for mitigating peen forming errors is suggested.</p>

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Review on incremental deformation in shot peen forming and forming accuracy control methods

  • 期刊论文

  • 发表日期：

    2026年3月26日

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  • Xudong Xiao,
  • Zegen Tan,
  • Guoqiang Gao,
  • Jian Du,
  • Yiqing Zhang,
  • Yibo Li,
  • Meiling Guo

摘要

Shot peen forming is widely used to shape large aerospace components, such as aircraft wing skins, owing to its mold-free and highly flexible nature. However, the incremental deformation characteristic and the complex target profiles of peened components make controlling forming accuracy a significant challenge. This paper focuses on the causes and influences of incremental deformation in the peen forming process. It first reviews several key areas affecting accuracy: the uncertainties inherent in the process, the models relating forming parameters to results, the methods for process monitoring and result analysis, and the strategies for parameter planning. Based on this review, future research directions to enhance accuracy control are proposed. Finally, a potential stepwise correction methodology for mitigating peen forming errors is suggested.