磨削定位支承裂纹的形成原因及分析  

Formation Cause and Analysis on Cracks Caused by Grinding Positioning Support

作　　者：杨俊生[1,2,3] 叶健熠 夏谦[1,2,3] 崔旋 胡敬原 YANG Junsheng;YE Jianyi;XIA Qian;CUI Xuan;HU Jingyuan(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China;China International Science and Technology Cooperation Base for Digitization Design of High Performance Bearings,Luoyang 471039,China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]高性能轴承数字化设计国家国际科技合作基地,河南洛阳471039 [3]河南省高性能轴承技术重点实验室,河南洛阳471039

出　　处：《轴承》2021年第11期47-52,共6页Bearing

基　　金：国家重点研发计划(2019YFB2005002)。

摘　　要：介绍了轴承零件磨削过程中因磨削定位支承导致的裂纹,分析其产生的原因为:由于轴承零件磨削时的定位特性,导致磨削定位支承与轴承零件之间存在相对运动,摩擦磨损出现在磨削定位支承与轴承零件的接触区,在组织应力和机械应力的叠加作用下产生裂纹。另外,指出了磨削定位支承裂纹常见的产生位置,并对其形貌特征进行了归类。The cracks caused by grinding positioning support during grinding process of bearing parts are introduced,the causes are analyzed as follows:due to positioning characteristics during grinding of bearing parts,there is relative motion between grinding positioning support and bearing parts,friction and wear appear in contact area between grinding positioning support and bearing parts,and cracks initiate under superposition effect of structural stress and mechanical stress.In addition,the common positions of cracks caused by grinding positioning support are pointed out,and their morphological characteristics are classified.

关 键 词：滚动轴承 磨削 支承 裂纹 滚动摩擦磨损 磁粉检测 

分 类 号：TH133.33[机械工程—机械制造及自动化] TG580.1[金属学及工艺—金属切削加工及机床]