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Date of Publication:2009-01-01

Journal:大连理工大学学报

Affiliation of Author(s):材料科学与工程学院

Issue:1

Page Number:60-64

ISSN No.:1000-8608

Abstract:A set of self-developed thermal contact conductance (TCC) coefficient experimental system was employed in the experiments on the TCC coefficient between cast aluminum and 5CrMnMo die steel, and between extruded aluminum alloy and 5CrMnMo die steel. The changing tendency of TCC coefficient, in accordance with interfacial temperature and contact pressure between aluminum alloy and 5CrMnMo die steel is analyzed. It is found that TCC coefficient is not directly in proportion to interfacial temperature, but is roughly in proportion to contact pressure index. Besides, when they are in the same contact condition and measuring condition, the TCC coefficient between cast aluminum and 5CrMnMo die steel is generally smaller than that of the extruded aluminum alloy.

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