Simulation and Verification of Liner (ZGMn13Cr2) Investment Casting Based on Modified Porous Media Equivalent Thermal Conductivity Model

Authors

  • Jingwei Ran School of Mechanical & Electrical Engineering, Guizhou Normal University, Chin
  • Dinghao Guo School of Mechanical & Electrical Engineering, Guizhou Normal University, China
  • Zhengwei Yan Guizhou Lines Machine Design and Manufacture Co., LTD, China
  • Bo Lin Guizhou Lines Machine Design and Manufacture Co., LTD, China
  • Zhengtao Ma Guizhou Lines Machine Design and Manufacture Co., LTD, China
  • Xishan Wang School of Mechanical & Electrical Engineering, Guizhou Normal University, China
  • Zhiping Xie School of Mechanical & Electrical Engineering, Guizhou Normal University, China
  • Rong Li School of Mechanical & Electrical Engineering, Guizhou Normal University, China https://orcid.org/0000-0001-5744-070X

DOI:

https://doi.org/10.24425/afe.2026.157986

Keywords

ZGMn13Cr2, Porous media, Equivalent thermal conductivity model, Investment casting, Numerical simulation

Abstract

For the investment casting of ZGMn13Cr2 high-manganese steel porous liners, internal cavities can cause distortion in traditional numerical simulation of the temperature field and defect prediction. In this study, the Bruggeman porous medium equivalent thermal conductivity model was introduced and modified to suit porous castings. After calculating the overall porosity of the liner casting, an equivalent thermal conductivity scaling factor of 0.675 for the liner was derived based on the modified Bruggeman model, and simulations of the liner were carried out in ProCAST software using this correction factor. The simulation results show that the modified model significantly improved the uniformity of the temperature field and the synchronization of the solidification process, with more accurate shrinkage defect predictions. The maximum reduction in shrinkage volume at monitoring points reached 44.2%, and the uniformity of defect distribution was greatly enhanced. Finally, actual pouring of the liner product confirmed that the modified computational model was more consistent with the actual casting in terms of macroscopic forming, hole position accuracy, and defect distribution trends. This study provides a new approach for process simulation optimization of complex porous structure castings and offers practical experience for casting simulation and actual forming of porous products.

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Published

2026-07-13

How to Cite

Ran, Jingwei, et al. “Simulation and Verification of Liner (ZGMn13Cr2) Investment Casting Based on Modified Porous Media Equivalent Thermal Conductivity Model”. Archives of Foundry Engineering, vol. 26, no. 2, July 2026, pp. 21-32, doi:10.24425/afe.2026.157986.

Issue

Vol. 26 No. 2 (2026)

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Articles

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