Computer simulation of the effect of Thermal Contact Resistance on cooling time in injection molding

Document Type

Article

Publication Date

1-1-1999

Abstract

Thermal contact resistances (TCR) play an important role in heat transfer. TCR is therefore of significance in the simulation of injection molding processes where one of the factors determining productivity is the cooling time. Simulation software packages either consider TCR as negligible or use a constant value based on steady-slate conduction, whereas in injection molding, TCR is time-dependent. We use simulation of the injection molding process to show that using TCR values within the range obtained from steady state experiments may lead to underpredicting cooling times by up to 15% and, hence, there is a need to use time-dependent TCR in the heat transfer simulations. Our simulation result indicates that the value of TCR also affects the frozen layer fraction in the early postfilling period. © 1999, Simulation Councils, Inc.

Identifier

24044480692 (Scopus)

Publication Title

Simulation

External Full Text Location

https://doi.org/10.1177/003754979907300301

ISSN

00375497

First Page

144

Last Page

148

Issue

3

Volume

73

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