Tribologically Numerical Modeling to Confirm Coefficient of Friction for Cold Rolling Control

Abstract

The rolling force must be estimated with high accuracy in cold rolling control. For the purpose, the coefficient of friction must be determined with high accuracy. However, if the coefficients of friction determined from conventional methods, the cold rolling control with high accuracy recently becomes difficult. Therefore, it is desirable that a new method for determining the coefficient of friction is developed. In this paper, the tribologically numerical modeling is proposed in order to confirm the coefficient of friction at the interface between roll and workpiece. The coefficient of friction dependences on rolling parameters are calculated by using the model, and from these calculated results it can be confirmed that the coefficient of friction obtained is used efficiently for the cold rolling control.