Abstract: A numerical method for
simulating the pressure forming of visco-plastic sheet metal
under plane strain condition was presented based on the authors'
previous work and the related publications. The proposed method
is not only able to simulate the process under constant pressure
but also to determine the optimal loading pattern in order to
keep the strain rate approximately unchanging during the
processes. The results obtained by applying the proposed method
to some processes were consistent with the data in the
publications. The achievements of this study may serve as a
guide to define the process parameters for the relevant
processes.
Key words:
Visco-plastic sheet metal
Pressure forming Numerical method
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