基于正交试验的高铁轴承内圈冷辗扩壁厚均匀性优化分析  

Optimization analysis of wall thickness uniformity of inner ring of high speed rail bearing on cold rolling based on orthogonal test

作　　者：赵哲骐 孙宝寿[1,2] 束学道[1,2] 彭文飞[1,2] ZHAO Zhe-qi;SUN Bao-shou;SHU Xue-dao;PENG Wen-fei(Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China;Zhejiang Provincial Key Laboratory of Part Rolling Technology, Ningbo 315211, China)

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211 [2]浙江省零件轧制成形技术研究重点实验室,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2017年第4期6-10,共5页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家自然科学基金(51475247);宁波市重点学科基金项目(XKL14D2048);宁波市自然科学基金(2015B11045)

摘　　要：为提高高铁轴承内圈冷辗扩成形壁厚均匀性,应用ABAQUS软件建立高铁轴承内圈非对称冷辗扩有限元模型,并进行了相关模拟.基于正交试验方法,以冷辗扩成形后轴承内圈的壁厚均匀性为试验指标,获得了芯辊初始进给速度(A)、锥辊转速(B)和驱动辊转速(C)对壁厚均匀性的影响规律,并利用极差分析法和方差分析法对轴承内圈冷辗扩工艺参数进行优化.研究结果表明,工艺参数对内圈壁厚均匀性影响的主次顺序为C>A×C>B×C>A>B>A×B,并得到了最佳工艺参数组合.In order to improve the wall thickness uniformity of inner ring of high speed rail bearing on coldrolling,the finite element model of inner ring of high speed rail bearing under asymmetric cold ring rollingprocess is established through ABAQUS software.Taking the wall thickness uniformity of finished rings as testindex,the influence law of the initial feed rate of mandrel(A),cone roller speed(B)and drive roller speed(C)onthe wall thickness uniformity is obtained using the orthogonal test method.The parameters of inner ring duringcold rolling process are optimized by means of range analysis and variance analysis.The analytical results showthat the order of influence of process parameters on the wall thickness uniformity of inner ring isC?A?C?B?C?A?B?A?B,and the optimum combination of process parameters is obtained.

关 键 词：非对称 壁厚均匀性 正交试验 工艺参数 

分 类 号：TG335.12[金属学及工艺—金属压力加工]