TITLE

Development and application of constitutive equation for the hot extrusion of 7A04 aluminum alloy

AUTHOR(S)
Xiao, Yanhong; Cui, Zhenshan; Guo, Cheng
PUB. DATE
May 2013
SOURCE
AIP Conference Proceedings;May2013, Vol. 1532 Issue 1, p616
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The high-temperature deformation behavior of 7A04 aluminum alloy was investigated by hot compression tests in the temperature range of 300 - 450° and the strain rate range of 0.01-10 s-1. The true stress - true strain curves show that the stress level decreases with increasing temperature and decreasing strain rate. A modified JC model was developed by means of fitting the experimental data and optimizing the material constants. Then, based on the established constitutive equation of 7A04, the hot extrusion process of fuze shell was analyzed using DEFORM-3D and the flow law of metal was obtained. Finally, the validity of this research results was proved by practice, which provides some references for engineering application.
ACCESSION #
87656047

 

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