Modeling heat transfer in die milling

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Liste des auteurs: Barrios ANS, Silva JBC, Rodrigues AR, Coelho RT, Braghini A, Matsumoto H
Editeur: Elsevier
Année de publication: 2014
Numéro du volume: 64
Numéro de publication: 1-2
Page d'accueil: 108
Dernière page: 116
Nombre de pages: 9
ISSN: 1359-4311
Languages: Anglais-Royaume-Uni (EN-GB)


Résumé

This paper compares two different thermal models by solving computationally direct-inverse problem to estimate the net heat flux and convective coefficient when milling hardened AISI H13 die steel. Global and tri-dimensional transient models were developed and solved by Finite-Volume and Gauss Methods, respectively. Two cutting speeds were considered in dry finishing operation. Experimental temperatures measured by part-embedded thermocouples fed the inverse-problem, which were compared to theoretical temperatures given by direct-problem. Both models are able to estimate the thermal properties for milling processes. Tr-dimensional model approaches global one when using mean temperature of thermocouples. The models agreed with others in the literature. (C) 2013 Elsevier Ltd. All rights reserved.


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Dernière mise à jour le 2019-23-08 à 11:15