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变形温度、应变、应变速率的变化是控制金属微观组织和力学性能的基础。在有限元软件Deform3D平台上,基于三维刚塑性大变形热力耦合有限元理论,对同位起楔的楔横轧非对称轴类件成形过程进行了数值模拟,得到了轧制过程中温度、应变及应变速率各场量。结果改善了楔横轧非对称轴类件内部微观组织,为提高零件的综合力学性能提供理论依据。
Deformation temperature, strain and strain rate changes are the basis for controlling the microstructure and mechanical properties of metal. On the finite element software Deform3D platform, based on the 3D rigid-plastic large-deformation thermomechanical coupling finite element method, the forming process of the wedge-cross-wedge asymmetric shaft with isotropic wedge was numerically simulated. The relationship between temperature, strain and Strain rate of each field. The results improve the internal microstructure of the asymmetric shaft cross-wedge rolling cross-section to provide a theoretical basis for improving the mechanical properties of the parts.