Numerical Calculation of Roll Pass Designs for 3-Roll Rolling Mills

After a rolling model for the 3-roll process was presented in 2013, the present work provides a numerical algorithm for pass design in 3-roll rolling mills. It is based on geometric parametrizations of the groove geometries and an equivalent flat-pass method in conjunction with spreading models. The method allows the calculation of groove geometries of a pass sequence to achieve a prescribed cross-section distribution without over- or underfilling of the grooves. Examples are shown for typical rolling tasks in the 3-roll method. The model provides a framework for further developments, as it allows the integration of different spreading models.

Christian Overhagen | University of Duisburg-Essen