Transactions of Materials and Heat Treatment

Title：Kinematic analysis and experiment research on tandem skew rolling process for tube

Authors： Wang Fujie Mao Feilong Shuang Yuanhua Chen Jianxun Hu Jianhua Wang Qinghua

Unit： Yuncheng University Taiyuan University of Science and Technology

KeyWords： seamless tube tandem skew rolling process kinematics deformation compatibility roller

ClassificationCode：TG335.71

year,vol(issue):pagenumber：2021,46(4):215-222

Abstract：

The deformation process of seamless tube in tandem skew rolling (TSR) process was introduced. For the tube under the combined actions of rollers in piercing and rolling sections after the tandem skew rolling relationship was established, the kinematic relationships between rollers and tube were constructed by theoretical analysis method, and the velocity equations of tube between the exit of piercing section and the import of rolling section were obtained, which could satisfy the law of deformation compatibility. Then, the experiments were investigated in the mill of TSR, and the influences of roller speed for rolling section on the process of tandem skew rolling and the quality of rolled tubes were analyzed by adopting single variable control method. The experimental results show that when the process parameters of piercing section are unchanged, the roller speed of rolling section has great influence on the completion of tandem skew rolling successfully. When the roller speed is 174 r·min-1, the rolled tube is obtained due to the compatibility of axial and circumferential velocities. When the roller speed is 168 r·min-1, the phenomenon of pile-up steel occurs due to the incompatibility of axial velocities. When the roller speed is 182 r·min-1, the torsion phenomenon occurs due to the incompatibility of circumferential velocity.

Funds：

山西省高等学校科技创新项目资助（2019L0852）；山西省科技重大专项项目（20191102009）；优秀博士来晋科研专项（QZX-2019009）

王付杰（1975-），男，博士，副教授 E-mail：yonghuikeji@126.com

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