In accordance with low precision and more remainder material in domestic forging of heavy crankshafts,the simulation for the RR upsetting process of crankshaft is carried out by 3D rigid-plastic FEM.

• 针对我国大型曲轴锻造中存在的精度低、加工余量大等问题，采用3维刚塑性有限元法模拟了曲轴RR法镦锻成形过程。