Determination of the interfacial heat transfer coefficient for a hot aluminium stamping process
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
The interfacial heat transfer coefficient (IHTC) is an important thermophysical parameter in hot stamping processes and must be identified not only to retain the full mechanical strength of formed components, but also to optimise the production rate. In this work, a novel experimental facility was developed and applied to measure the temperature evolutions of the specimens and tools in stamping processes. Simulated temperature evolutions obtained using the FE software PAM-STAMP were then fit to this data. The IHTC values between AA7075 and three different tool materials were characterized at different contact pressures under both dry and lubricated conditions. In addition, a mechanism based IHTC model was developed and validated as a function of contact pressure, tool material and lubricant thickness to predict the IHTC values under different conditions.
Date Issued
2017-04-08
Date Acceptance
2017-04-06
Citation
Journal of Materials Processing Technology, 2017, 247, pp.158-170
ISSN
1873-4774
Publisher
Elsevier
Start Page
158
End Page
170
Journal / Book Title
Journal of Materials Processing Technology
Volume
247
Copyright Statement
© 2017 Elsevier B.V. All rights reserved. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Materials
0913 Mechanical Engineering
0912 Materials Engineering
0910 Manufacturing Engineering
Publication Status
Published