Modelling Closed-Die Forging Operations Using Total Lagrangian Smooth Particle Hydrodynamics

Abstract

Total Lagrangian Smooth Particle Hydrodynamics (TLSPH) has been applied to a set of non-trivial, commercially interesting forging examples. Being a mesh-free method, TLSPH can conveniently simulate processes having large deformation and material separation. Test cases were designed that were characterized by large material flows having large changes in grain connectivity. The implementation used, Smooth Mach Dynamics (SMD), provided tunable simulation parameters that enabled the simulation to optimally match each case. The results showed that the TLSPH/SMD has the potential to model the metal forging process efficiently without numerical instabilities. Each case studied required adaptation of the simulation parameters to optimize the results.

Archives of Foundry Engineering

“…Therefore, the Lagrangian particle-based SPH meshless method is more suitable for simulating the shaping process. The occurrence of holes, cracks, and their interactions are modeled and simulated, becoming more intensive in terms of arithmetic and computation [16,24,35,89,90,91,103].…”