A Numerical Evaluation Of An Inverse Heat
Conduction Procedure For Determining
Contact Resistance During Metal Forming
Author(s)
P.H. Oosthuizen, J. Jeswiet & W. Nashama
Abstract
A numerical evaluation of an inverse heat
conduction procedure for determining
contact resistance during metal forming
P.H. Oosthuizen, J. Jeswiet & W. Nashama
Department of Mechanical Engineering, Queen's
University, Kingston, Ontario, Canada, K7L 3N6
ABSTRACT
In order to experimentally determine the contact resistance during
metal forming processes a technique to measure the temperatures very
close to the two sides of the interface has been developed. This technique
has been initially applied to a situation in which a short cylinder made
from aluminium is squeezed between two steel dies. In this experimental
study, the material is unheated and the heat flux results purely from the
work being done on the aluminium. Using the measured
temperature-time variations on each side of the interface, an inverse heat
conduction procedure is used to deduce the value of the contact resistance.
In this technique the internal heat generation is assumed to uniform in
Keywords
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