抗侧滚扭杆极限镦粗比仿真分析及应用  

Simulation Analysis and Application of Limit Upsetting Ratio for Anti-rolling Torsion Bar

作　　者：曾晶晶[1] 卜继玲[1] 王京雁[1] 刘柏兵[1] 王永冠[1] 丁行武[1] ZENG Jingjing;BU Jiling;WANG Jingyan;LIU Baibing;WANG Yongguan;DING Xingwu(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou,Hunan 412007,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《轨道交通材料》2023年第2期25-28,共4页MATERIALS FOR RAIL TRANSPORTATION SYSTEM

摘　　要：以抗侧滚扭杆为研究对象,使用Simufact软件建立三维热力耦合工艺链仿真模型,获得了扭杆闭式镦粗工艺与开式镦粗工艺极限镦粗比规律;针对文中扭杆镦粗工艺提出变截面模具改进方案并进行仿真与试制验证。结果表明,极限镦粗比规律对提高扭杆镦粗工艺的质量给发挥了很大作用,避免镦粗失稳,并指导模具优化设计,降低生产成本。Focusing on the anti-rolling torsion bar,the simulation model of 3-D thermal mechanical coupling process chain is established by using the software“Simufact”,and the law of limit upsetting ratio of closed upsetting process and open upsetting process are obtained.The improvement of variable cross-section mold for upsetting process of torsion bar is proposed and verified by simulation and trial production.Test results show that the law of limit upsetting ratio provides guidance for upgrading the quality of upsetting process,which can help avoid upsetting instability,guide optimal design of the mold and reduce production cost.

关 键 词：抗侧滚扭杆 镦粗工艺 极限镦粗比 数值模拟 

分 类 号：U260.331[机械工程—车辆工程]