机械科学与技术2025，Vol.44Issue(1)：92-99,8.DOI:10.13433/j.cnki.1003-8728.20240183
铝合金框梁零件加工变形仿真与预变形装夹技术
Machining Deformation Simulation and Pre-deformation Clamp Technique for Aluminum Alloy Frame-beam Parts
摘要
Abstract
The frame-beam thin-wall parts of aluminium alloy are widely used in the aerospace engineering.However,such parts often come into significant deformation in the machining.The initial residual stress in the aluminium alloy blank is identified as the most critical factor influencing the machining deformation.In this study,a typical single-sided three-frame part was investigated.The simulation by using"model change"approach was carried out.A deformation control method based on pre-deformation clamp was proposed,and the clamp layout for typical single-sided three-frame parts was designed.The verification of its effectiveness in preventing deformation was conducted,and the experimental results demonstrated that comparing with traditional vacuum fixture,the pre-deformation clamp method achieved the improvements by 66.5％and 55.8％in the maximum deformation and flatness,respectively.关键词
机械加工/变形仿真/预变形装夹/薄壁零件Key words
machining/deformation simulation/pre-deformation clamp/thin-walled parts分类
矿业与冶金引用本文复制引用
黄康华,冯峰,谢雨良,徐志鹏,周文萌,龚汉民,李思觅,张建富,梁桂强,冯平法..铝合金框梁零件加工变形仿真与预变形装夹技术[J].机械科学与技术,2025,44(1):92-99,8.基金项目
国家自然科学基金项目(52275441)与深圳市科技计划(KJZD20230923114606013) （52275441）
