汽车零件表面疲劳裂纹的检测

Examination of surface Fatigue Cracks of Automotive Parts

论述了表面疲劳裂纹检测在汽车修理中的重要地位，简单分析了疲劳断口的特征，重点讨论了汽车零件表面疲劳裂纹的发生规律及其常见部位。介绍了常用的检测方法，详细叙述了磁粉探伤和荧光探伤的工作原理和具体的工艺过程。

The importance of examination of surface fatigue cracks in automobile repair is stated in this paper,and the features of fatigue fracture are briefly analysed. Then the regularity and commonly seen portion of surface fatigue cracks in automotive parts are emphatically discussed. Finally the commonly used examination methods,the working principles and detailed operating processes of fluorimetric and magnetic testers are presented