A predictive model for the evolution of the thermal conductance at the casting-die interfaces in high pressure die casting
Identifieur interne : 007A78 ( Main/Exploration ); précédent : 007A77; suivant : 007A79A predictive model for the evolution of the thermal conductance at the casting-die interfaces in high pressure die casting
Auteurs : A. Hamasaiid [France] ; G. Dour [France] ; T. Loulou [France] ; M. S. Dargusch [Australie]Source :
- International journal of thermal sciences [ 1290-0729 ] ; 2010.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
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.
Affiliations:
- Australie, France
- Midi-Pyrénées, Occitanie (région administrative), Région Bretagne
- Albi, Lorient
- Université de Bretagne-Sud
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Dour</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Universite de Toulouse, INSA, UPS, Mines Albi, ISAE, ICA (Institut Clement Ader), CROMeP, Campus Jarlard</s1><s2>81013 Albi</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Midi-Pyrénées</region><settlement type="city">Albi</settlement></placeName></affiliation></author><author><name sortKey="Loulou, T" sort="Loulou, T" uniqKey="Loulou T" first="T." last="Loulou">T. Loulou</name><affiliation wicri:level="4"><inist:fA14 i1="03"><s1>Université de Bretagne-Sud, LIMAT B, rue de Saint-Maudé</s1><s2>56321 Lorient</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Bretagne</region><settlement type="city">Lorient</settlement><settlement type="city">Lorient</settlement></placeName><orgName type="university">Université de Bretagne-Sud</orgName></affiliation></author><author><name sortKey="Dargusch, M S" sort="Dargusch, M S" uniqKey="Dargusch M" first="M. S." last="Dargusch">M. S. Dargusch</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CAST Cooperative Research Centre, School of Engineering, The University of Queensland</s1><s2>St. Lucia, Brisbane QLD 4072</s2><s3>AUS</s3><sZ>4 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>St. Lucia, Brisbane QLD 4072</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">International journal of thermal sciences</title><title level="j" type="abbreviated">Int. j. therm. sci.</title><idno type="ISSN">1290-0729</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">International journal of thermal sciences</title><title level="j" type="abbreviated">Int. j. therm. sci.</title><idno type="ISSN">1290-0729</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aluminium base alloys</term><term>Analytical method</term><term>Cast alloy</term><term>Heat transfer</term><term>High pressure die casting</term><term>Initial condition</term><term>Light alloy</term><term>Liquid solid interface</term><term>Magnesium base alloys</term><term>Pressure die casting</term><term>Solid inclusion</term><term>Solidification</term><term>Thermal conductivity</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Conductivité thermique</term><term>Coulée sous pression</term><term>Méthode analytique</term><term>Solidification</term><term>Transfert chaleur</term><term>Inclusion solide</term><term>Condition initiale</term><term>Alliage léger</term><term>Alliage moulé</term><term>Interface liquide solide</term><term>Alliage base magnésium</term><term>Alliage base aluminium</term><term>Coulée sous haute pression</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Midi-Pyrénées</li><li>Occitanie (région administrative)</li><li>Région Bretagne</li></region><settlement><li>Albi</li><li>Lorient</li></settlement><orgName><li>Université de Bretagne-Sud</li></orgName></list><tree><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Hamasaiid, A" sort="Hamasaiid, A" uniqKey="Hamasaiid A" first="A." last="Hamasaiid">A. Hamasaiid</name></region><name sortKey="Dour, G" sort="Dour, G" uniqKey="Dour G" first="G." last="Dour">G. Dour</name><name sortKey="Loulou, T" sort="Loulou, T" uniqKey="Loulou T" first="T." last="Loulou">T. Loulou</name></country><country name="Australie"><noRegion><name sortKey="Dargusch, M S" sort="Dargusch, M S" uniqKey="Dargusch M" first="M. S." last="Dargusch">M. S. Dargusch</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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