Transactions of Materials and Heat Treatment

Title：Optimization method of blank design on cold rolling of conical roller bearing outer ring

Authors： Lu Bohan Liu Bin Qian Dongsheng Lan Yuzhong Gao Jian

Unit： Wuhan University of Technology Zhejiang Tianma Bearing Group Company limited Anhui Wuzhou Xinchun Cold Forming Technology limited

KeyWords： conical roller bearing cold rolling bearing outer ring axial force warping

ClassificationCode：TG335

year,vol(issue):pagenumber：2019,44(1):61-67

Abstract：

For the problems of exceeding taper angel and serious warping degree existing in the single cold rolled outer ring of conical roller bearing, in order to improve its rolling accuracy, the methods of blank design and optimization in cold rolling process of outer ring were studied by the integrated application of theoretical analysis, finite element simulation and experiment verification, and the reasonable blank of cold rolling was designed. The evolution of plastic deformation and geometrical shape during the cold rolling process of single conical roller bearing outer ring was investigated to verify the reasonability and feasibility of the blank design. The results show that the horizontal crosssectional area distribution of blank along the axial direction has an important influence on the cold rolling precise of outer ring. Meanwhile, the axial force acting on the shaft during the rolling process was analyzed. The result presents that the axial force is lower at the initial stage of rolling process, and the axial force increases with the increasing of plastic deformation degree and reaches the maximum value at the final stage of rolling process.

Funds：

国家自然科学基金资助项目（51575414，51605355）；高等学校学科创新引智计划资助（B17034）；湖北省重大科技创新计划项目（2015AAA005）

路博涵（1989-），男，博士，E-mail：lbhwhlgdx@163.com；通讯作者：钱东升（1982－），男，博士，教授，E-mail：qiands@whut.edu.cn

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