Transactions of Materials and Heat Treatment

Title：Establishment and analysis on finite element model for C19400 copper strip in reversible hot rolling

Authors： Zhang Qihang Su Juanhua Zhang Xuebin Hou Wenwu Huang Tao Song Kexing

Unit： Henan University of Science and Technology Collaborative Innovation Center of Nonferrous Metals Tongling Jinwei Copper Co. Ltd.

KeyWords： C19400 copper strip reversible hot rolling rolling force equivalent strain equivalent stress DEFORM-3D

ClassificationCode：TG339

year,vol(issue):pagenumber：2019,44(12):11-19

Abstract：

Based on the enterprise production process and three-dimensional finite element theory, the finite element model of reversible hot rolling for C19400 copper strip was established by DEFORM-3D platform, and the accuracy of the model was verified by the on-site measured rolling force of C19400 copper strip. Then, the changes of equivalent strain, equivalent stress, temperature field and rolling force during the first three passes of hot rolling were simulated by the above model. The results show that the calculated rolling force is in good agreement with the measured rolling force, and the correlation coefficients R of the three passes are 0.970, 0.996 and 0.994, respectively. Furthermore, the average relative errors AARE are 5.8%, 3.3% and 4.1% respectively. And the equivalent strain distribution is relatively uniform, and the maximum equivalent strain is at the edge where the roller contacts the rolling piece, and the corresponding data of the three passes are 0.568, 1.283 and 2.13, respectively. Then, the maximum equivalent stress is at the edge of the rolling piece and the rolling zone where the roller is in contact with the rolling piece, and the equivalent strain gradually decreases to the periphery from the center of the zone with the maximum equivalent stress of 88.1 MPa.

Funds：

国家重点研发计划（2017YFB0306400）；河南省杰出人才创新基金（182101510003）；河南省创新型科技团队（C20150014）

张启航（1994-），男，硕士研究生 E-mail：qhzhang370@163.com 通讯作者：苏娟华（1963-），女，博士，教授 E-mail：sujh@haust.edu.cn

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