Analysis of the influence of kinematic and frictionasymmetry on the curvature of the strip and forceparameters of the rolling process

Author:

Sułek Bartosz1ORCID,Krawczyk Janusz2ORCID,Majewski Marcin1ORCID,Nawida Natalia1,Plewa Krzysztof1

Affiliation:

1. Łukasiewicz Research Network – Poznan Institute of Technology

2. AGH University of Science and Technology, Faculty of Metals Engineering and Computer Science

Abstract

This paper presents the numerical analysis results in Simufact Forming 2016 of the asymmetric cold rollingprocess of S235JR steel. The research determined the effect of kinematic asymmetry, frictional asymmetryand their combination on the strip curvature, as well as the force parameters of the rolling process. During theconducted research, the aim was to determine the parameters of the asymmetric rolling process, allowing thehighest possible reduction of forces (in relation to symmetric rolling) while maintaining the curvature of thestrip with an acceptable value |δ|≤1.5. For this purpose, "process maps" were developed based on the obtainedresults, allowing for selecting the most favourable process parameters for the different rolling reductions.In addition, the results made it possible to determine the effect of the various asymmetries obtained on theprocess forces and strip curvature depending on the size of the rolling reduction.

Publisher

Index Copernicus

Subject

General Medicine

Reference23 articles.

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2. Knight C.W., Hardy S.J., Lees A.W., Brown K.J.: Influence of roll speed mismatch on strip curvatureduring the roughing stages of a hot rolling mill, Journal of Materials Processing Technology 2005, 168,pp. 184–188.

3. Knight C.W., S.J. Hardy, A.W. Lees, Brown K.J.: Investigation into the influence of asymmetric factorsand rolling parameters on strip curvature during hot rolling, Journal of Materials Processing Technology2003, 134, pp. 180–189.

4. Kawałek A., Dyja H., Knapiński M.: Wpływ asymetrycznego walcowania na poprawę wskaźnikówtechniczno-ekonomicznych procesu walcowania blach na gorąco, Hutnik – Wiadomości Hutnicze 2008,nr 6, pp. 316–320.

5. Kraner J., Smolar T., Volšak D., Cvahte P., Godec M., Paulin I.: A review of asymmetric rolling.Materiali in tehnologije 2020, 54, pp. 731–743.

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