Transactions of Materials and Heat Treatment

Title：Research on sliding coefficient of planetary rolling process

Authors： Zeng Qingling Zang Yong Zhu Xu Che Yanming

Unit： University of Science and Technology Beijing Guangdong Tube & Rod Technology Co. Ltd.

KeyWords： planetary rolling rolling velocity axial sliding coefficient tangential sliding coefficient

ClassificationCode：TG339

year,vol(issue):pagenumber：2015,40(5):84-89

Abstract：

With theoretical analysis method, the calculation methods of axial sliding coefficient and tangential sliding coefficient were obtained by analyzing the metal flow of cross-section and the force and torque of the rolled-piece in planetary rolling process. The theoretical results were compared and analyzed with the numerical simulation results. The results show that the tangential velocity in the deformation zone reduces slowly at first, and then decreases to the minimum value sharply, after that it increases. The axial velocity in the deformation zone increases slowly at first, then increases rapidly, and finally increases through a slowly changing zone. The compared results show that the trends obtained by theoretical calculation are consistent with that obtained by finite element analysis, so the theoretical analysis method is verified. The metal flow rule in the rolling process is described accurately by calculating the sliding coefficient.

Funds：

广东省教育部科技部产学研结合项目(2010B091000003)

曾庆龄（1985-），女，博士研究生臧勇（1963-），男，硕士，教授，博士生导师

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