20th International Forgemasters Meeting - IFM 2017

Presented approach to simulation of the ring (or wheel) rolling technology includes modeling of the whole sequence of technological operations starting from upsetting of an ingot, then forging a blank, piercing it and finally rolling it in a stand and heat treatment. The specific feature of a ring rolling process that makes its simulation so difficult is related to big number of rotations required by the technology that causes increasing of the computational time. In QForm VX software it is compensated by implementation of the dual mesh method that is based on the use of two independent meshes based on tetrahedral finite elements. Verification of the rolling process simulation was performed using different industrial cases and they have shown good correspondence with practice in terms of the load applied to the rolls and predicted shape of the rings, flanges and wheels. The developed numerical model is available for different types of machines, i.e. single stand mill, double stand mill with different methods of process control, stands with inside and outside main rolls. They are illustrated by industrial examples of the simulation implementation.