High Temperature Materials and Processes (Mar 2018)

Finite Element Analysis of Surface Residual Stress in Functionally Gradient Cemented Carbide Tool

  • Su Chuangnan,
  • Liu Deshun,
  • Tang Siwen,
  • Li Pengnan,
  • Qiu Xinyi

DOI
https://doi.org/10.1515/htmp-2016-0085
Journal volume & issue
Vol. 37, no. 3
pp. 233 – 243

Abstract

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A component distribution model is proposed for three-component functionally gradient cemented carbide (FGCC) based on electron probe microanalysis results obtained for gradient layer thickness, microstructure, and elemental distribution. The residual surface stress of FGCC-T5 tools occurring during the fabrication process is analyzed using an ANSYS-implemented finite element method (FEM) and X-ray diffraction. A comparison of the experimental and calculated values verifies the feasibility of using FEM to analyze the residual surface stress in FGCC-T5 tools. The effects of the distribution index, geometrical shape, substrate thickness, gradient layer thickness, and position of the cobalt-rich layer on residual surface stress are studied in detail.

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