Prediction of Forming Torque in Roll-Forming of Symmetric Channel Section for SS2333 Steel Sheet

The forming torque is one of the most important information needed for starting-up a roll-forming line. In this paper the effect of profile geometric parameters on the forming torque is investigated, in roll-forming of symmetric channel section. The parameters which are to be studied include sheet thickness, fold angle, flange width and web width. To end this, the torque is predicted by a neural network algorithm. Finite element simulation has been utilized to train the neural network and the simulation results were validated, comparing with existing experimental results. Then an equation is proposed to determine forming torque. The results show that forming torque is considerably affected by sheet thickness, fold angle and flange width, while the effect of web width is negligible.