No abstract

The figure describes lateral stress distributions in the work roll and a group of small rolls which serve as backup rolls in a UTC mill, predicted from the finite element analysis of the elastic deformation of the roll stack which has been carried out by Metal Forming and CAD/CAE Laboratory in POSTECH. Further details can be found in the article http://doi.wiley.com/10.1002/srin.201900252 by Sang Moo Hwang and co‐workers.

This paper presents a new on-line model for the prediction of the roll force profile across the strip in cold rolling. Also presented is a new on-line model for the prediction of roll deformed profile in a six-high mill. It is shown that an integrated model may be formed for the prediction of the strip profile on the basis of them. The prediction accuracy of the proposed models is examined through comparison with the predictions from Finite Element simulation.

These days production of a strip with uniform thickness (zero or a very small strip crown) has crucial importance in mill industries. However, it is not possible to achieve with various existing technologies such as pair cross (PC) mill, high crown control mill (HC mill), continuously variable crown (CVC), etc. Herein, the uniform thickness control (UTC) technology is introduced, which enables the manifestation of perfectly flat strip profiles at each mill stand in the hot strip mill. It is demonstrated by finite element (FE) simulation that UTC technology has the high capability of flatness as well as strip crown control for a wide range of widths and roll forces, indicating its potential to give rise to revolutionary changes in the current mill practices in the future.