基于ABAQUS镜像铣削铝合金表面残余应力有限元分析  

Finite Element Analysis of Residual Stress on Aluminum Alloy Surface Based on ABAQUS Mirror Milling

作　　者：高秋阁 张立强[1] 杨杰[1] 钱栊 GAO Qiuge;ZHANG Liqiang;YANG Jie;QIAN Long(Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学,上海201620

出　　处：《航空制造技术》2024年第6期92-99,共8页Aeronautical Manufacturing Technology

摘　　要：为了分析铣削工艺参数对铝合金的已加工表面残余应力的影响,借助金属切削有限元分析等相关理论,以6061铝合金为工件材料,建立了铣削加工的有限元模型。采用单因素法对6061铝合金进行镜像铣削仿真,并分析不同的主轴转速、铣削深度、铣削路径对加工的表面残余应力的影响。研究表明,在铝合金6061加工过程中,对工件表面残余应力影响因素由小到大依次为铣削深度<铣削路径<主轴转速,铣削深度对已加工表面残余应力影响较小,主轴转速对已加工表面残余应力影响最大,镜像铣削最优组比普通铣削形变位移减小33%。In order to analyze the influence of the milling process parameters on the residual stress of the machined surface of aluminum alloy,according to the related theories of metal cutting finite element analysis,the aluminum alloy 6061 was used as the workpiece material,and the finite element model of milling was established.The single factor method is used to simulate the mirror milling of aluminum alloy 6061,and the influence of different spindle speed,milling depth and milling path on the surface residual stress of aluminum alloy 6061 is analyzed.The research shows that during the processing of aluminum alloy 6061,the influencing factors on the surface residual stress of the workpiece in descending order are milling depth<milling path<spindle speed.The spindle speed has the greatest influence on residual stress of the machined surface,and the optimal group of mirror milling reduces the deformation displacement by 33%compared with ordinary milling.

关 键 词：铝合金 残余应力 镜像铣削 ABAQUS 铣削路径 

分 类 号：V261.23[航空宇航科学与技术—航空宇航制造工程]