Scroll plate is the core component of scroll compressor,which has the characteristics of large curvature change,large tooth height to thickness ratio and high material removal rate.2A70 aluminum alloy scroll plate is selected as the research object,and a milling parameter optimization method based on milling force and residual stress is proposed.The 3D milling physical simulation model of 2A70 aluminum alloy scroll plate is established by using the finite element software ABAQUS.Based on the simulation model,the prediction of chip shape,milling force and residual stress during milling of scroll plate is realized.The comprehensive effects of milling speed,feed rate per tooth,axial depth of cut and radial depth of cut on milling are studied by orthogonal test.The effects of single milling parameters on milling force and residual stress are analyzed.The milling parameters are optimized by comprehensive balancing method.The results show that the greatest in-fluence on milling is the axial cutting depth and the smallest is the milling speed.Milling parameters have significant influ-ence on milling force,and increasing milling speed can reduce the residual stress of the workpiece.
关键词
涡旋盘/铣削/2A70铝合金/有限元仿真/铣削参数优化
Key words
scroll plate/milling/2A70 aluminum alloy/finite element simulation/milling parameter optimization
维普
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