| 轿车后桥加工中的残余应力研究 |
| |
| 引用本文： | 李昊,詹春晓,刘一华,王炯华,李张银.轿车后桥加工中的残余应力研究[J].汽车技术,2004(4):28-30. |
| |
| 作者姓名： | 李昊 詹春晓 刘一华 王炯华 李张银 |
| |
| 作者单位： | 1. 合肥工业大学
2. 上汽集团奇瑞汽车有限公司 |
| |
| 摘 要： | 分别对轿车后桥横梁鞍形加强筋焊缝头部附近在冲压与焊接后的残余应力进行了测试，分析了残余应力分布与变化情况。研究结果表明，横梁中的冲压残余拉应力在焊接后变小，对焊接后的后桥中残余应力分布是有利的；后桥横梁鞍形加强筋焊缝头部的残余拉应力最大，可导致此处发生疲劳损伤。
|
| 关 键 词： | 汽车工程 后悬架 冲压技术 焊接工艺 残余应力测量 盲孔法 释放系数 |
| 文章编号： | 1000-3703(2004)04-0028-03 |
Study on Residual Stress During Machining of Car Rear Axles |
| |
| Li Hao,Zhan Chunxiao,Liu Yihua,Wang Jionghua,Li Zhangyin.Study on Residual Stress During Machining of Car Rear Axles[J].Automobile Technology,2004(4):28-30. |
| |
| Authors: | Li Hao Zhan Chunxiao Liu Yihua Wang Jionghua Li Zhangyin |
| |
| Institution: | Li Hao1,Zhan Chunxiao1,Liu Yihua1,Wang Jionghua1,Li Zhangyin2 |
| |
| Abstract: | Residual stress at ends of the welding seam of the saddle-shaped reinforcing rib of the rear axle cross member after stamping and after welding are measured respectively,and distribution and variation of residual stress are analyzed.It is shown by studies that,stamping residual tensile stress becomes smaller after welding,which is advantageous for residual stress distribution of rear axle after welding;the maximum residual stress of rear axle cross member incurs at ends of the welding seam of the saddle-shaped reinforcing rib,which can result in fatigue damage. |
| |
| Keywords: | Rear suspension Stamping Welding Stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
