Abstract:
In this paper, the process of simulating deformating force and
metal flow in forming process using UBET is stated and the basic
equations of UBET are developed. According to Minimum Upper
Bound Power Principle, the deformation force and metal flow in
cup-rod compound extrusion for different parameters, such as
different reduction rate and different conical angles are
simulated using UBET. The deformation models and formulas for
calculating flow-out quantities to two ends of exit are also
given. The results of experiments show that the theoretical
prediction is close to the practice.
Key words:
Extrusion Digital simulation Plastic flow theory
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