航空工程进展2025，Vol.16Issue(2)：134-141,8.DOI:10.16615/j.cnki.1674-8190.2025.02.15
国产7050铝合金薄壁承力框车削残余应力变形控制研究
Research on residual stress and deformation control of domestic 7050 aluminum alloy thin-wall bearing frame turning
摘要
Abstract
Researching the deformation control of domestic 7050 aluminum alloy aviation thin-walled bearing frame parts during turning processing is crucial for ensuring machining precision and performance while maintaining cut-ting efficiency with minimized radial deformation.Initially,a three-dimensional turning residual stress simulation model is established and validated through experiments for the accuracy of the domestic 7050 aluminum alloy thin-walled bearing frame turning simulation model.Subsequently,an orthogonal experiment is conducted based on the three-dimensional turning simulation model to establish a mapping model between turning parameters and residual stress.Finally,with the objectives of turning efficiency and residual stress optimization,optimized turning parame-ters for the domestic 7050 aluminum alloy aviation thin-walled bearing frame are obtained using a genetic algo-rithm.The results show that the optimized machining surface residual stress is reduced to 15.6 MPa,and the maxi-mum radial deformation of the bearing frame is 1.59 mm,which is about 19%less than the original turning parame-ters,achieving the goal of controlling and optimizing the processing deformation of the domestic 7050 aluminum al-loy aviation thin-walled bearing frame.关键词
国产7050铝合金/航空薄壁件/加工变形/车削残余应力/变形优化Key words
domestic 7050 aluminum alloy/aerospace thin-walled parts/processing deformation/turning residual stress/deformation optimization引用本文复制引用
胡越,张晟玮,蒋睿嵩,黄崇湘..国产7050铝合金薄壁承力框车削残余应力变形控制研究[J].航空工程进展,2025,16(2):134-141,8.基金项目
四川省科技计划资助(2021ZDZX0001,2021ZDZX0002) （2021ZDZX0001,2021ZDZX0002）
