质量放大系数对冷滚打成形廓形与变形力的影响  

Influence of mass magnification factor on forming profile and deformation force in cold roll-beatting forming simulation

作　　者：梁小明 吴神丽 刘凌 姚梓萌 焦艳梅 柏朗 Liang Xiaoming;Wu Shenli;Liu Ling;Yao Zimeng;Jiao Yanmei;Bai Lang(School of Mechanical & Materials Engineering, Xi′an University, Xi′an 710065, China;Shanxi Key Laboratory of Surface Engineering & Remanufacturin, Xi′an 710065, China)

机构地区：[1]西安文理学院机械与材料工程学院,西安710065 [2]陕西省表面工程与再制造重点实验室,西安710065

出　　处：《黑龙江科技大学学报》2021年第2期203-208,共6页Journal of Heilongjiang University of Science And Technology

基　　金：陕西省教育厅重点实验室科研计划项目(19JS055,19JS054)。

摘　　要：为了获得质量放大系数与计算时间和精度之间的关系,依据冷滚打成形的基本原理,应用ABAQUS软件建立了有限元仿真模型,分析质量放大系数对成形廓形、变形力和计算时间的影响,实验验证仿真结果的准确性。结果表明:当质量放大系数大于10^(5)时,获得的仿真廓形和变形力误差很大;当质量放大系数系大于10^(4)、小于10^(5)时,计算时间没有明显缩短,而仿真精度受到一定的影响;当质量放大系数系为10^(4)时,相同工艺条件下实验与仿真获得的径向力最大值相差约2%,切向力最大值相差约为8%,廓形截面形状各部分也基本吻合,验证了仿真模型和仿真结果的正确性。This paper is concerned with a study on the relationship between mass amplification and computational efficiency and accuracy in a way that identifies the logical relationship among mass amplification and the calculation time and the accuracy.The study building on the basic principle of cold roll-beating forming involves developing the finite element simulation model using ABAQUS software,investigating the influence of mass magnification factor on forming profile,deformation force and calculation time,and verifying the simulation results by experiments.The results show that,in the presence of the mass magnification factor greater than 10^(5),very large errors occur in the simulation profile and deformation force;in the presence of the mass magnification factor greater than 10^(4)and less than 10^(5),there is no significant reduction in the calculation time,but the simulation accuracy is affected to some extent;and in the presence of the mass magnification factor set to 10^(4),under the same process conditions,the observed differences are about 2%and 8%respectively for the maximum radial force and the maximum tangential force,with very close results where the shape of the profile section is basically consistent,verifying the correctness of the simulation model and the simulation results.

关 键 词：冷滚打 质量放大系数 有限元 变形力 

分 类 号：TG334.19[金属学及工艺—金属压力加工]