汽车发动机曲轴常见的失效形式及原因分析  

Main Failure Forms and Analysis of Automobile Engine Crankshaft

作　　者：冯继军[1] 郭文芳[1] 

机构地区：[1]东风汽车有限公司工艺研究所,湖北十堰442001

出　　处：《失效分析与预防》2006年第2期7-12,共6页Failure Analysis and Prevention

摘　　要：本文简要介绍了汽车发动机曲轴常见的失效形式,分析了各种失效形式可能的原因。指出汽车发动机曲轴在其设计、制造、使用中的任何一个环节的不当,都可能会造成其失效,汽车发动机曲轴的失效原因,涉及到从材料、加工、结构、受力、服役环境到相关零件分析的多个过程,并给出一些典型工程失效分析案例,提出了相应的预防改进措施。The rmain failure forms of the automobile engine crankshafts were presented and meir possible causes were analyzed. It indicated＇that any lapsus in the process of design, manufacture and use would result in crankshaft failure. The causes of crankshaft failure can be related to the factors of material, machining, structure, operating loads and environment, Some typical instanees coming from practical production were provided and some measurements to improve and control the part qualities were suggested.

关 键 词：发动机 曲轴 失效分析 疲劳 

分 类 号：U464[机械工程—车辆工程]