Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Analysis of Edge Drop on Strip Due to Effect of Rolling Forces Distribution in Combination with Plastic Deformation of Bur Rolls in 4-High Cold Mill

Rumualdo Servin
ORCID logo ,
Ismael Calderon
* ORCID logo ,
Sixtos Antonio Arreola
ORCID logo ,
Alejandro Perez-Alvarado
ORCID logo ,
Alma Rosa Mendez
,
Hector Javier Vergara
Version 1 : Received: 19 December 2023 / Approved: 19 December 2023 / Online: 19 December 2023 (08:30:23 CET)

A peer-reviewed article of this Preprint also exists.

Servin, R.; Calderon, I.; Arreola, S.A.; Perez, A.; Mendez, A.R.; Vergara, H.J. Analysis of Edge Drop on Strip due to Bending and Elastic Deformation of Back up Rolls in a Four-High Cold Mill. Metals 2024, 14, 181. Servin, R.; Calderon, I.; Arreola, S.A.; Perez, A.; Mendez, A.R.; Vergara, H.J. Analysis of Edge Drop on Strip due to Bending and Elastic Deformation of Back up Rolls in a Four-High Cold Mill. Metals 2024, 14, 181.

Abstract

The superficial quality of the strip is a very important issue in steel production; the profile, flat-ness, and geometry of strip are indicators of supreme quality. Considering the dimensions, the thickness is one of the most important variables in the production of strip. In the present study the elastic curve of Back Up Rolls (BUR) is analyzed, considering them as simply supported beams as well as the effect of rolls on the profile of the strip, specifically in the strip edge pro-ducing edge drop. The analysis is simulated with a model in 3D using a Finite Element Method (FEM) considering +0.039mm crown on Back Up Roll and +0.101mm crown on Work Roll (WR). The results showed that there is an instability zone of 76mm in the strip edge, this geometry is symmetrical in both ends of the strip, it was validated with the results of compact X-ray thick-ness gauge from a 4-high cold mill. This study not only provides a theoretical basis for the edge drop, but also provides the basis for the understanding of deformation on rolls used in rolling mill processes and their effect on the thickness, profile, shape, and dimensional quality of strips.

Keywords

Drop Edge; Elastic Curve; 4-High Mill; Strip Edge; Thickness of Strip

Subject

Engineering, Mechanical Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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