Analysis and design of multiblow hammer forging processes by the explicit dynamic finite element method

摘要

In the present work the numerical simulations of multi-blow hammer forging, as a high-velocity impact deformation phenomenon, are described. The explicit time integration finite element method is used to compute the workpiece deformation. Theeffects of strain hardening, strain rate hardening and thermal softening are considered. Through the simulation of copper blow test, the developed program has been verified. As an industrial example, multi-blow forging of a turbine blade using counterblow hammer has been simulated. Through the simulation of turbine blade forging, it has been shown that the developed explicit finite element program can be successfully applied to simulation of other practical industrial parts.