A predictive model for the evolution of the thermal conductance at the casting-die interfaces in high pressure die casting

Hamasaiid, A, Dour, G, Loulou, T and Dargusch, MS (2010) A predictive model for the evolution of the thermal conductance at the casting-die interfaces in high pressure die casting. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 49 2: 365-372.


Author Hamasaiid, A
Dour, G
Loulou, T
Dargusch, MS
Title A predictive model for the evolution of the thermal conductance at the casting-die interfaces in high pressure die casting
Journal name INTERNATIONAL JOURNAL OF THERMAL SCIENCES  (ERA 2012 Listed)    (ERA 2010 Rank B)   Check publisher's open access policy
Publication date 2010-02
Sub-type Article
Year available 2009
DOI 10.1016/j.ijthermalsci.2009.07.014
Volume number 49
Issue number 2
ISSN 1290-0729
Start page 365
End page 372
Total pages 8
Editor Gobin, D
Bayazitoglu,Y
Gross, U
Place of publication Paris, France
Publisher Elsevier Masson
Collection year 2010
Language eng
Subject C1
970109 Expanding Knowledge in Engineering
091207 Metals and Alloy Materials
Abstract An analytical model is proposed to predict the time varying thermal conductance at the casting-die interface during solidification of light alloys during High pressure Die Casting. Details of the topography of the interface between the casting and the die are included in the model through the inclusion of solid surface roughness parameters and the mean trapped air layer at the interface. The transitory phase of the interfacial thermal conductance has been related to the degradation of contact as solidification progresses through the casting thickness. The modelled time varying thermal conductance showed very good agreement with experimentally determined values for different alloy compositions and casting geometries. The analysis shows that the parameters that govern the thermal conductance. are different for the first stage of contact compared to the second stage of contact when the alloy begins to solidify
Keyword Thermal contact resistance
Heat transfer coefficient
Thermal conductance
High pressure die casting
Solidification
HEAT-TRANSFER COEFFICIENT
MAGNESIUM ALLOY
PROCESS PARAMETERS
SOLID-SURFACE
SOLIDIFICATION
CONTACT
VARIABLES
LIQUID
AREA
Q-Index Code C1
Q-Index Status Confirmed Code

 
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