Finite Element Analysis of Thin Strip Profile in Asymmetric Cold Rolling Considering Work Roll Crossing and Shifting

Abstract

Cold rolled thin strip has received a great deal of attention through technological and theoretical progress in the rolling process, as well as from researchers who have focused on some essential parameters of strip such as its shape and profile. This paper describes the development of a 3-D finite element model of the shape of thin strip during cold rolling to simulate the cold rolling of WCS (work roll crossing and shifting) in asymmetric rolling. This finite element model considers the asymmetrical rolling parameters such as variations in the diameters of the rolls and the crossing angle as the work roll shifts on the strip during cold rolling. The shape and profile of the strip are discussed in the asymmetrical and symmetrical rolling conditions, while the total rolling force and distribution of stress are discussed in the case where the roll cross angle and axial shifting roll changes. The results can then be used to control the shape and profile of thin strip during rolling.

Effects of Rolling Force on Strip Shape during Tandem Cold Rolling Using a Novel Multistand Finite Element Model

“…Yang et al [15] set up a 3D static FE model to analyze the effects of the back-up roll (BR) contour on pressure distribution between the work roll (WR) and BR. Aljabri et al [16] analyzed the influence of WR crossing on the thin strip thickness profile during asymmetrical rolling using a 3D elasticplastic FE model. Wang et al [17] studied the influence of high tension on flatness deviation integrating FEM, the differential method, and the influence function method.…”

Numerical analysis of the strip crown inheritance in tandem cold rolling by a novel 3D multi-stand FE model

“…Sun et al [11] calculated the roll deformation of a six-high mill using a 3D symmetrical FE model. Aljabri et al [12] analysed the effect of work roll crossing on the strip crown employing a 3D symmetrical FE model. Wang et al [13][14][15] systematically studied the effects of work roll bending (WRB), intermediate roll bending (IRB), and intermediate roll shifting (IRS) on the strip crown and flatness in a UCM mill using a 3D elastic-plastic FE model.…”

Numerical Simulation of Strip Shape of High-Strength Steel during Hot Rolling Process

“…Linghu et al [8,9] investigated the strip shape during multi-pass rolling in a 6-high CVC cold rolling mill through a 3D elastic-plastic FE model. Aljabri et al [10] simulated the asymmetrical strip rolling using WR cross and WR shifting by FEM. Wang et al [11,12] studied the actuator efficiency factors for UCM cold rolling mill using an elastic-plastic FEM.…”