Transactions of Materials and Heat Treatment

Title：Influence of rolling parameters on spiral grooved steel ball in diagonal rolling

Authors： Xin Xuanrong Wang Lewei Guo Junqing Zhang Yanmin

Unit： Henan University of Science and Technology

KeyWords： spiral grooved diagonal rolling steel ball rolling roller bear

ClassificationCode：TG376.3

year,vol(issue):pagenumber：2016,41(10):70-76

Abstract：

When bearing steel balls are processed by the spiral groove diagonal rolling, the die process, installation and adjustment are extremly complex and time-consuming. Therefore, the rolling process was simulated by the finite element software-Deform based on the control variable method, and influences of bar size, rolling temperature and inclination angle on rolling were researched by changing the single parameter. The results show that the bar size effects the steel ball shape in the greatest extent. Furthermore, lack of bar size causes the band gap of steel ball, and oversize bar leads to metal accumulation on the surface of steel ball. However, rolling temperature has the greatest influence on rolling force, and the higher rolling temperature is beneficial to reduce the rolling force, but it causes decarburization on the surface of steel ball and the oxidation, so the lower rolling temperature is suggested to be used in the process design. When the roll angle is less than the roll helix angle, it is easy to appear in the process of rolling that steel ball cannot rotate, so the roll angle and the roll helix angle should be consistent as far as possible.

Funds：

河南省杰出人才资助项目（134200510011）

作者简介：辛选荣（1956-），男，硕士，教授 E-mail：xxr@qhforging.com；通讯作者：王乐伟（1989-），男，硕士研究生 E-mail：979209363@qq.com

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