硬车加工不当对轴承套圈表面性能的影响  

Influenece of Improper Hard Turning on Surface Performances of Bearing Rings

作　　者：李检贵 叶健熠[1,2,3] 单琼飞 王智勇 康风波[1,2,3] LI Jiangui;YE Jianyi;SHAN Qiongfei;WANG Zhiyong;KANG Fengbo(Luoyang Bearing Research Institute Co., Ltd., Luoyang 471039,China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China;Strategic Alliance for Technology Innovation in Rolling Bearing Industry, 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]河南省高性能轴承技术重点实验室,河南洛阳471039 [3]滚动轴承产业技术创新战略联盟,河南洛阳471039

出　　处：《轴承》2020年第8期19-22,共4页Bearing

摘　　要：尽管硬车加工有很多优点,但若硬车加工不当,将会损伤工件表面性能。以四列圆柱滚子轴承FCDP120164575/P5外圈为对象,研究硬车加工不当对套圈表面性能的影响。结果表明,硬车不当可使套圈表面性能发生变化,如表面硬度升高,残余奥氏体含量变化,拉应力增加,甚至会造成崩边及表面局部烧伤等质量问题,对产生这些问题的原因进行了深入分析,并提出了预防措施。Although hard turning has many advantages,the surface performances will be damaged during improper hard turning of workpiece.Taking the outer ring of four row cylindrical roller bearing FCDP120164575/P5 as an object,the influence of improper hard turning on surface performances of rings is studied.The results show that the improper hard turning changes surface performances of rings,such as increased surface hardness,changed residual austenite content and increased tensile stress,even causing chipping,local burns and other surface quality problems.The causes of these problems are analyzed in depth,and the preventive measures are put forward.

关 键 词：滚动轴承 四列圆柱滚子轴承 套圈 高碳铬轴承钢 硬车 崩边 硬度 

分 类 号：TH133.332[机械工程—机械制造及自动化] TG51[金属学及工艺—金属切削加工及机床]