3-D thermo-mechanical coupled FEM simulation of continuous hot rolling process of 60SiMnA spring steel bars and rods

Jiahe Ai, Huiju Gao, Tongchun Zhao, Xishan Xie, and Yu LiuDepartment of Materials Science and Engineering, Tsinghua University, Beijing 100084, ChinaMaterials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, ChinaDepartment of Powder Metallurgy, Advanced Technology & Materials Co. Ltd, Beijing 100081, ChinaIron & Steel Technological Center, Liaoning Special Steel (Group) Co. Ltd, Dalian 116031, China

摘 要：<正> The 3-D thermo-mechanical coupled elasto-plastic finite element method （FEM） was used for the simulation of the two-pass continuous hot rolling process of 60SiMnA spring steel bars and rods using MARC/AutoForge3.1 software. The simulated results visualize the metal flow and the dynamic evolutions of the strain, stress and temperature during the continuous hot rolling, especially inside the work-piece. It is shown that the non-uniform distributions of the strain, stress and temperature on the longitudinal and transverse sections are a distinct characteristic of the continuous hot rolling, which can be used as basic data for improving the tool design, predicting and controlling the micro-structural evolution of a bar and rod.

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