理化检验-物理分册2016，Vol.52Issue(2)：133-135,138,4.DOI:10.11973/lhjy-wl201602015
某汽车换档摇臂断裂失效分析
Failure Analysis on Fracture of an Automobile Lever in Transmission
厉晓航1
作者信息
- 1. 杭州依维柯汽车传动有限公司,杭州 311231
- 折叠
摘要
Abstract
By means of macroscopic inspection,chemical composition analysis,metallographic examination, hardness test,scanning electron microscope analysis and energy spectrum analysis,the fracture reasons of an automobile lever in transmission were analyzed.The results show that the fracture of the lever was caused by too much stamping force from stamping process which would result in micro cracks around the stamping hole.When shifting the gear in transmission,the lever would be forced and the micro cracks would propagate,which finally induced fracture of the lever.关键词
摇臂/断裂/冲压力/铆接/微裂纹/失效分析Key words
lever/fracture/stamping force/stamping/micro crack/failure analysis分类
矿业与冶金引用本文复制引用
厉晓航..某汽车换档摇臂断裂失效分析[J].理化检验-物理分册,2016,52(2):133-135,138,4.
