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Date of Publication:2008-01-01

Journal:大连理工大学学报

Affiliation of Author(s):物理学院

Issue:1

Page Number:58-62

ISSN No.:1000-8608

Abstract:Vacuum hot bulge forming is an innovative manufacture method used to produce many industrial components. Components are formed by thermal expansion of the die as forming load. A two-dimensional nonlinear thermo-mechanical coupled FE model was established. In this model, influences of many factors, such as nonlinear radiation heat transfer and thermal physical properties of material depending on temperature, were considered. Numerical simulation of vacuum hot bulge forming process of titanium alloy cylindrical workpiece was carried out using FE analysis software MSC.Marc. The temperature and deformation fields of vacuum hot bulge forming of titanium alloy cylindrical workpiece were analyzed. And the corresponding experiments were carried out. The simulation results agree well with the experimental ones.

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