• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 62 ›› Issue (6): 132-141.doi: 10.3901/JME.260180

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Modeling Method of Cold Rolling Compounding Process of Heterogeneous Metals and Analysis of Compounding Mechanism

CHEN Nan1, XIAO Zihan1, YU Chao1, QI Zichen2, REN Zhongkai3, XIAO Hong1   

  1. 1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004;
    2. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014;
    3. National Key Laboratory of Metal Forming Technology and Heavy Equipment, Taiyuan University of Technology, Taiyuan 030024
  • Received:2025-08-10 Revised:2025-12-12 Published:2026-05-12

Abstract: Metal composite plates have extensive applications in many fields of modern industry, among which cold rolling is the main method for preparing metal composite plates. In order to prepare composite plates with better performance, it is necessary to study the composite mechanism and process in depth. As the most widely recognized cold rolling composite mechanism currently, the film theory believed that the brittle hardening layer on the metal surface cracks under large plastic deformation, and squeezed into the crack under large rolling pressure to form mechanical bite during cold rolling, which is the main reason of composite. Based on this theory, many studies have pointed out that the reduction rate required for forming composite between heterogeneous metals depends on the softer metal, however, the greater the performance different between metals, the greater the performance difference between metals in actual production, there is still no reasonable explanation for this. In order to reveal the composite mechanism of heterogeneous metals in the cold rolling process, a finite element model which can completely and accurately describe the interfacial composite and separation in the cold rolling process is established through the secondary development of MARC software. Based on this model, the important role of interfacial shear stress in the cold rolling composite process was revealed, and the composite mechanism was improved, through this mechanism, the reasons for the influence of material properties and reduction rate on the composite process were explained.

Key words: cold rolling, composite mechanism, heterogeneous metal, composite plate, finite element

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