通道夹角对连续ECAP大应变技术的影响  

Effect of Channel Angle on Continuous ECAP Large Straining Technology

作　　者：费震旦[1] 许晓静[1] 蒋凌[1] 陆文俊[1] 

机构地区：[1]江苏大学先进成形研究所,镇江212013

出　　处：《机械设计与制造》2012年第11期7-9,共3页Machinery Design & Manufacture

基　　金：国家自然基金资助项目(51074079)

摘　　要：采用有限元软件Deform-3D模拟了连轧驱动等通道转角大应变技术,研究了工件的大应变过程,重点分析了模具通道夹角(分别为95°、97.5°、100°、102.5°和105°)对工件有效应变、轧制驱动轮扭矩以及大应变技术能量消耗的影响。结果表明:随着通道夹角增加,应变呈下降趋势,应变突变幅度减小,平稳性提高;各轧制轮上的扭矩减小,主动轮所占总扭矩之比减小,扭矩分配更合理;当通道夹角为100°时,工件的底部镦粗现象减小,有效应变值也达到所需值,能耗达到最小值。The finite element simulation of rolling driven equal angular channel large straining technology has been carried out by using Deform-3D software,and the large straining deformation process of workpieces is analyzed,with the special focus on the influence of channel angle（the angle is 95°、97.5°、100°、102.5° and 105°,respectively）on the effective strain,torque of rollers,and energy consumption of large straining technology.The results show that,with the increasing of channel angle,the effective strain and strain mutation amplitude decreases,but stationarity improves;as each torque of rolling wheel decreases,the ratio of driving wheel torque and total torque is reduced,but the distribution of torque becomes more reasonable;when the channel angle is 100°,the upsetting phenomenon in the bottom of workpiece decreases and the effective strain has reached the desired value,and the energy consumption has reached the minimum.

关 键 词：ECAP 通道夹角 能耗 

分 类 号：TH16[机械工程—机械制造及自动化] TG332[金属学及工艺—金属压力加工]