抗侧滚扭杆轴滚压强化表层残余应力的研究  

Research of Surface Residual Stress Strengthening with Rolling for Anti-roll Torsion Bar

作　　者：邹敏佳[1] 刘文松[1] 郭春杰[1] 聂清明[1] 罗斌[1] 

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：《机车电传动》2012年第6期37-39,共3页Electric Drive for Locomotives

摘　　要：采取X射线衍射法定量测定一种高速车用扭杆轴滚压后残余应力场。结果表明:该方法测得的数据准确,离散度小,完全满足EN 15049中对残余应力的检测要求;随着滚压进刀量的增大,扭杆表层残余压应力逐渐变大,进刀量和残余应力呈指数关系分布,进刀量进一步增大,应力增大趋势变得平缓。Residual stress field of torsion bar after rolling was quantitatively measured with X-ray diffraction method. Test results showed that the measured method had accuracy data, small divergence factor, which could fulfill the requirement of residual stress in EN 15049. Along with increase of rolling amount of feed, surface residual stress of torsion bar became bigger gradually, which was index distribution, and along with the further increase of amount of feed, increase trend of stress receded.

关 键 词：残余应力 疲劳强度 X射线衍射法 滚压 抗侧滚扭轴 

分 类 号：U266.331.6[机械工程—车辆工程] TG115.222[交通运输工程—载运工具运用工程]