汽车杆式半轴裂纹分析及预防措施  

Cracking Analysis and Preventive Measure for Automobile Rod Semi-shaft

作　　者：李艳[1] LI Yan(Xi'an Aeronautical Polytechnic Institute,Xi'an 710089,China)

机构地区：[1]西安航空职业技术学院,陕西西安710089

出　　处：《工业加热》2020年第2期58-60,共3页Industrial Heating

摘　　要：对某汽车杆式半轴中频淬火裂纹进行化学成分分析、宏微观断口分析、显微组织分析及感应淬火有效硬化层分析。结果表明,该裂纹主要由于汽车杆式半轴材料中存在有聚集性分布的非金属夹杂物和淬火应力引起的,并提出合理而有效地预防措施。After analysis of medium frequency quenching crack of automobile rod semi-shaft,analysis of macro-micro fracture,analysis of micro structure and analysis of effective hardening layer of induction quenching,it turns out that quenching cracking is caused by aggregated non-met-alic inclusions in the material and quenching stress.Finally,the effective preventive measures are put forward.

关 键 词：汽车杆式半轴 淬火裂纹 夹杂物 

分 类 号：U463.218.6[机械工程—车辆工程]