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J. Manuf. Mater. Process. 2018, 2(3), 48; https://doi.org/10.3390/jmmp2030048

Effects of Deformation Conditions on the Rolling Force during Variable Gauge Rolling

1
Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran 158754413, Iran
2
Department of Materials Engineering, Islamic Azad University, Bandar Abbas Branch, Bandar Abbas, Hormozgan 7915893144, Iran
*
Author to whom correspondence should be addressed.
Received: 8 June 2018 / Revised: 12 July 2018 / Accepted: 17 July 2018 / Published: 19 July 2018
(This article belongs to the Special Issue Analysis and Modeling of Sheet Metal Forming Processes)
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Abstract

In this study, effects of different deformation conditions on the rolling force were studied during variable gauge rolling processes. To this end, variations of rolling forces with rolling times were analyzed at different roll diameters, absolute thickness reductions and friction coefficients. Considering the rolling force variations, an abrupt change in the outlet section of downward and outward rolling was observed at all deformation conditions. The experimental data, along with the results obtained from finite element method (FEM) simulations, revealed that this drop in the rolling force (DRF) is strongly dependent on the deformation conditions. It was found that the DRF value increases with increasing absolute thickness reduction, roll diameter and friction coefficient. Furthermore, dependency of contact length on the roll radius and wedge angle (slope of the thickness transition zone) was investigated. Accordingly, it was concluded that the variations of the DRF value can be mainly attributed to the changes in the contact length during variable gauge rolling. Moreover, slab method analysis was used to model the effects of deformation conditions on DRF. View Full-Text
Keywords: variable gauge rolling; flexible rolling; tailor rolled blanks; rolling force variable gauge rolling; flexible rolling; tailor rolled blanks; rolling force
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Shafiei, E.; Dehghani, K. Effects of Deformation Conditions on the Rolling Force during Variable Gauge Rolling. J. Manuf. Mater. Process. 2018, 2, 48.

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