沟球断面环件冷辗扩三维有限元模拟与工艺设计  

3D Finite Element Method Simulation and Process Design for Cold Rolling Ball Groove Section Ring

作　　者：华林[1] 左治江[1] 兰箭[1] 钱东升[1] 

机构地区：[1]武汉理工大学材料学院,武汉430070

出　　处：《机械工程学报》2008年第10期201-205,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金(50335060);高校青年教师奖(教人司[2002]383号);塑性成形模拟及模具技术国家重点实验室开放基金(05-04)资助项目。

摘　　要：沟球断面环件冷辗扩是滚珠轴承套圈制造新工艺。以有限元软件Abaqus为平台,根据冷辗环机实际工作条件,建立从矩形断面毛坯冷辗扩成形沟球断面环件的三维弹塑性动力显式有限元模型。通过动力显式有限元数值模拟,研究沟球断面环件冷辗扩变形过程,揭示出该环件冷辗扩中直径增长和圆度变化规律。基于数值模拟结果,优化设计矩形断面环件毛坯尺寸和冷辗扩工艺参数。在D56G90冷辗环机上进行沟球断面环件冷辗扩试验,验证了数值模拟结果,并采用矩形断面环件毛坯成功冷辗扩出了沟球断面轴承套圈。Cold rolling ball groove section ring is a new technology for manufacturing ball groove bearing race. By using ABAQUS, a 3D elastic-plastic dynamic explicit FE model of ball groove section ring rolled from rectangle section blank is built according to the actual working condition of cold ring rolling process. Through dynamic explict FE simulation, the cold ring rolling process is studied and diameter growth rule and circularity variation rule of ball groove section ring is outlined. According to the simulation results, the rectangle section ring blank dimension and process parameters are optimized. For verifying the optimized dimension and process parameters, a series of cold ring rolling experiments are conducted in the D56G90 cold ring rolling mill. The simulation results are in good agreement with the experimental results. The ball groove bearing race is successfully rolled from rectangle section blank.

关 键 词：沟球环件 冷辗扩 有限元法 工艺设计 

分 类 号：TG335.19[金属学及工艺—金属压力加工] TH133.33[机械工程—机械制造及自动化]