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This paper presents the microstructure-based polycrystalline model to simulate the micromachining of polycrystalline Inconel 718. A crystal plasticity material model was used to investigate the deformation behavior. The microstructure feature, such as crystallographic orientation, is considered in the constitutive model. A shear strain-based criterion described the material removal during the chip formation. The ABAQUS finite element solver with a user-defined subroutine is used for the model. The material parameters have been identified with the experimental data. From the proposed model, the effect of microstructure on the cutting forces and the chip formation process is investigated.

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Finite Element Simulations of Deformation and Material Removal of Polycrystalline IN718

  • 会议论文

  • 发表日期：

    2026年

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  • Srihari Dodla

摘要

This paper presents the microstructure-based polycrystalline model to simulate the micromachining of polycrystalline Inconel 718. A crystal plasticity material model was used to investigate the deformation behavior. The microstructure feature, such as crystallographic orientation, is considered in the constitutive model. A shear strain-based criterion described the material removal during the chip formation. The ABAQUS finite element solver with a user-defined subroutine is used for the model. The material parameters have been identified with the experimental data. From the proposed model, the effect of microstructure on the cutting forces and the chip formation process is investigated.