Analysis of the Asymmetric Plate Rolling Process

Abstract:

The paper presents the results of the theoretical analysis of the asymmetric plate rolling process conducted in the plate finishing mill. The purpose of the work was to determine the influence of working rolls velocity asymmetry on the value and direction of the bending radius of strip flowing out from the deformation zone. The variable parameters of the process were: rotational speed asymmetry factor, a_v ; strip shape factor, h₀/D; and cross-sectional area reduction ε. For the theoretical study, a commercial computer program, FORGE 2008^®, was employed. Working rolls of a diameter of 1100 mm and a constant lower working roll rotational speed of n = 80 rpm were assumed for the study. The asymmetric rolling process was achieved by varying the rotational speed of the upper roll, which was lower than that of the lower roll. The range of variation of the roll rotational speed asymmetry factor, a_v, was 1.01÷1.20. On the basis of the conducted theoretical analysis, the influence of the speed asymmetry factor (a_v = 1.00÷1.20) on plate curvature upon exit from the deformation zone was determined, and the distributions of strip velocity.

• Periodical: Materials Science Forum (Volumes 706-709)
• Pages: 1438-1443
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.706-709.1438
• Online since: January 2012
• Authors: Anna Kawałek, Henryk Dyja, Ł. Sołtysiak, Sebastian Mróz, Piotr Szota
• Keywords: Asymmetric Rolling, Energy Parameters, Force Parameters, Neutral Point, Neutral Surfaces, Strip Curvature

References

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