The Behaviour of Finite Element Model in Simulation of Forging Process

The FE simulation can predict the loads and energies required to perform forging operation, the filling or lack of the dies, the occurrence of flow defects and the resultant properties of the workpiece. Therefore there is a need for further development of simulation technique. The FE analysis users usually implement different numerical techniques to reach to the suitable model. The punch load-displacement diagram is usually used to verify model. This study discus some cases where there is a very good agreement between load diagrams obtained by FE simulation and experiment, whereas obtained flow stress and strain deviate from experimentally measured values significantly. As a result, verifying load diagram is not enough condition for exact modeling. In addition; the comparison of calculated plastic flow of material with what observed experimentally proves that FE modeling predicts softer behavior for material than reality.

کلیدواژه ها:

Rim-disk forging ، Verification of Finite Element simulation