行星滚柱冷轧成形材料流动模拟与实验  

Simulation and Experiment Study on Material Flow Behavior of Planetary Roller Manufactured by Cold Rolling Process

作　　者：马自勇 王旭[2] 罗远新[2] 房雪洋 张富泉 MA Zi-yong;WANG Xu;LUO Yuan-xin;FANG Xue-yang;ZHANG Fu-quan(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;College of Mechanical Engineering,Chongqing University,Chongqing 400044,China;Collaborative Innovation Center of Taiyuan Heavy Machinery Equipment,Taiyuan 030024,China)

机构地区：[1]太原科技大学机械工程学院,太原030024 [2]重庆大学机械工程学院,重庆400044 [3]太原重型机械装备协同创新中心,太原030024

出　　处：《太原科技大学学报》2022年第3期220-225,共6页Journal of Taiyuan University of Science and Technology

基　　金：国家自然科学基金(51775062);山西省应用基础研究计划(201901D211292);太原科技大学博士科研启动基金(20192022);来晋工作优秀博士奖励资金(20202036)。

摘　　要：为了研究行星滚柱冷轧成形过程中的材料流动行为,首先,根据金属体积不可压缩假设,对差动式行星滚柱丝杠机构(PRSM)的环形滚柱坯件外径尺寸进行了计算与修正;接着,利用有限元软件DEFORM-3D模拟分析了环形滚柱冷轧成形过程中流线网格、径向位移以及应力场随压下深度的变化规律;最后,在宝飞螺PR15设备上开展了环形滚柱冷轧成形实验。结果表明,环形滚柱材料流动主要集中在距坯件表面0.45 mm的范围,齿根与齿廓区的材料致密度大于齿顶区;成形齿顶各处材料径向流动位移不一致导致了V型凹槽缺陷;轧轮齿全高对环形滚柱齿顶材料流动影响较大。该研究为差动式PRSM环形滚柱冷轧加工工艺优化与轧轮设计提供了参考依据。To study on material flow behavior of planetary roller in cold rolling process,the initial diameter of the ring roller blank of differential type planetary roller screw mechanism(PRSM)is firstly calculated and modified based on the constancy of metal volume in this work.Then,finite element software DEFORM-3D is used to analyze the variation of streamline grid,flow displacement and stress field with the penetration depth of rolling dies during the cold rolling process.Finally,the rolling experiment of the ring roller is carried out on the PR15 rolling device manufactured by Profiroll Technologies Company,Germany.The results show that the material flow of ring roller is mainly concentrated in the range of 0.45 mm from the surface,and the material density in the tooth root and profile is greater than that in the tooth top.The V-groove defect is resulted from the inconsistent radial displacement of material flow at the top of the formed tooth,and the tooth depth of rolling dies has a great influence on the material flow of roller.This work provides a reference for process optimization of the ring roller cold rolling and roller design.

关 键 词：行星滚柱丝杠 环形滚柱冷轧 材料流动 有限元模拟 冷轧实验 

分 类 号：TG335[金属学及工艺—金属压力加工]