Investigating the suitability of using a single heat transfer coefficient in metal casting simulation: An inverse approach

Investigating the suitability of using a single heat transfer coefficient in metal casting simulation: An inverse approach

VASILEIOU Anastasia, VOSNIAKOS George-Christopher, PANTELIS Dimitrios Ι.

Abstract. In metal casting simulation the Heat Transfer Coefficient (HTC) is unknown as it depends on melt and mold materials, on the casting modulus at different regions of the casting and on local conditions at the mold-casting gap. In this paper, thermocouple measurements at three regions of a brass investment casting provided reference cooling curves. A genetic algorithm (GA) determined the optimum 3-step time-dependent HTC for the whole of the casting in a simulation program for which cooling curves are as close as possible to the reference curves. The resulting prediction of solidification times is satisfactory but prediction of qualitative characteristics such as start / end of solidification in different regions was not accurate enough.

Keywords
Metal Casting, Casting Modulus, Heat Transfer Coefficient, Genetic Algorithm

Published online 4/19/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: VASILEIOU Anastasia, VOSNIAKOS George-Christopher, PANTELIS Dimitrios Ι., Investigating the suitability of using a single heat transfer coefficient in metal casting simulation: An inverse approach, Materials Research Proceedings, Vol. 28, pp 1175-1182, 2023

DOI: https://doi.org/10.21741/9781644902479-128

The article was published as article 128 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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