A study of the interfacial heat transfer between an iron casting and a metallic mould

F. Lau, Wing Bun Lee, S. M. Xiong, B. C. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

52 Citations (Scopus)

Abstract

Computer simulation of the solidification process is used widely in industry in the design of the mould and the die configuration. The heat-transfer coefficient between the mould and the cast metal is one of the important variables. In this work, the heat-transfer behavior and the time-dependent heat-transfer coefficient between an iron casting and a metallic mould were investigated by inverse heat-conduction analysis. A one-dimensional inverse heat calculation program, which can be used in both rectangular and cylindrical coordinate systems, was developed based on a non-linear estimation method. Temperature distributions along the direction of heat flux from the casting to the mould were measured, the predicted temperature profile being found to compare well with the experimental results. The heat-transfer coefficient was found to drop rapidly during the initial stage of solidification and then increase with the solidification process after a short time period of steady stage. It is concluded that a three stage segmented linear equation of the coefficient can be used to represent the heat-transfer behavior and be implemented in numerical analysis of the casting process.
Original languageEnglish
Pages (from-to)25-29
Number of pages5
JournalJournal of Materials Processing Technology
Volume79
Issue number1-3
DOIs
Publication statusPublished - 1 Jul 1998

Keywords

  • Casting
  • Heat-transfer coefficient
  • Inverse heat calculation
  • Metallic mould

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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