不锈钢车削表面残余应力的模拟与参数优化  

Simulation and Parameter Optimization of Surface Residual Stress on Turning Stainless Steel

作　　者：谢鸿基 王明红[1] XIE HongJi; WANG Minghong(Mechanical Engineering,Shanghai University of Engineering and Science, Shanghai 0160, China)

机构地区：[1]上海工程技术大学机械工程学院

出　　处：《机械设计与研究》2018年第5期148-151,共4页Machine Design And Research

摘　　要：采用有限元软件对304不锈钢干切削过程进行模拟,获得不同影响因素下的工件表面残余应力值。采用静态信噪比（S/N）和方差分析对仿真结果进行分析,得到切削速度、进给量、背吃刀量、刀尖圆弧半径和刀具前角对工件表面残余应力的影响情况,根据分析结果对各影响因素进行优化,并将优化后的参数进行实验对比验证。结果表明：切削速度、进给量、背吃刀量、刀尖圆弧半径、刀具前角对工件表面残余应力的贡献度分别为10.14%,15.19%,8.48%,62.42%,3.77%。The finite element software is used to simulate the dry cutting process of 304 stainless steel,and get the surface residual stress of workpiece under different factors. The simulation results were analyzed by static signal-to-noise ratio（ S/N） and analysis of variance（ ANOVA）. The contribution of cutting speed,feed rate,cutting depth,radius of tool nose and tool rake angle to the surface residual stress on the workpiece were obtained. According to the analysis results,the influence factors are optimized,and the optimized parameters are verified by experiments. The results show the contributions of cutting speed,feed rate,cutting depth,radius of tool nose,tool rake angle were 10.14%,15.19%,8.48%,62.42%,3.77%.

关 键 词：有限元 田口(Taguchi)方法 残余应力 优化分析 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]