中国机械工程2017，Vol.28Issue(19)：2325-2331,7.DOI:10.3969/j.issn.1004-132X.2017.19.009
轴承圈加热切削加工表面质量研究
Research on Surface Quality of Heated Cutting Bearing Rings
摘要
Abstract
In view of hard turning processes of bearings,the processing surface morphology of the outer rings of the bearings was obtained after the ordinary hard cutting and the pre-heating hard ma-chining.Experimental results show that heated hard turning will help to reduce the roughness of the machined surface when the inner rings of workpieces are pre-heated to 160℃,due to the inner ring's heatings reduce the temperature difference between inner and outer rings of the bearings,the surface residual stress decreases significantly,its value is up to -50 MPa,the processed surface textures are smooth and neat,tracks of tool feed motion are clear;there are no obvious changes in the surface hardnesses of the workpieces obtained separately by heated cutting and ordinary cutting.The heated cutting method obtains a uniform saw tooth shaped chip,and the chip shape is in a spiral shape, which shows that the heated cutting processes of bearing rings are relatively stable.,it is beneficial to the formation of smooth surface,which may be used to improve the performance of the bearing rings.关键词
硬态车削/残余应力/加热/表面质量/轴承Key words
hard turning/residual stress/heating/surface quality/bearing分类
机械制造引用本文复制引用
徐兰英,伍强,覃孟扬,汤勇..轴承圈加热切削加工表面质量研究[J].中国机械工程,2017,28(19):2325-2331,7.基金项目
国家自然科学基金资助项目(51375101) （51375101）
广东省自然科学基金资助项目(2014A030313638,2015A030313673) （2014A030313638,2015A030313673）
广东省科技计划资助项目(2014A010104014) （2014A010104014）
