An Improved Grey Wolf Optimizer for Minimizing Drilling Deformation and Residual Stress in AA2024 Sheet

Rui Wu,Shiyao Huang,Wenqian Zhang,Min Zhu,Zhong Zheng,Tao Li,Huan Xue

The International Journal of Advanced Manufacturing Technology（2024）

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摘要

Aiming at the problem of large deformation and residual stress after drilling of aircraft skin Aluminum Alloy 2024 (AA2024) sheet, an Improved Grey Wolf Optimizer (IGWO) is proposed to optimize its fixture layout to make the deformation and residual stress smaller. A layout coding scheme is designed to obtain the maximum deformation and residual stress under different fixture layouts. Then, a kriging prediction model is developed with a prediction error of 3.7

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关键词

AA2024,Deformation,Residual stress,Fixture layout,Kriging prediction model,Improved grey wolf optimizer

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