Effect of Internal Stress of Incoming Strip on Hot Rolling Deformation Based on Finite Element and Infinite Element Coupling Method

Liu, Chao; He, Anrui; Yan, Qiang; Guo, Defu; Shao, Junpeng

doi:10.3390/met8020092

Cited by 11 publications

(6 citation statements)

References 15 publications

(9 reference statements)

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“…The paper analyses the asymmetric process caused by the radius ratio and speed ratio, and studies the influence of the asymmetric process on the rolling force, rolling torque and sheet curvature. Through a piecewise fusion strategy, Liu employs finite elements for the rolled area of the strip and infinite elements for elastic restraint at the ends of the strip [19]. The paper optimizes the rolling coupling model.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation analysis of the rolling process based on the particle swarm hybrid algorithm

Yan

et al. 2023

Ironmaking & Steelmaking

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It is very complicated to study the three-dimensional deformation of metal during rolling. The conventional finite element numerical analysis method generally adopts a fixed algorithm to calculate the whole rolling process. This method consumes huge computing power and sacrifices some computing accuracy. In this paper, according to the characteristics of different rolling stages, on the basis of considering the degree of metal deformation, a particle swarm hybrid algorithm with adaptive weight-learning factor is proposed.The Zoutendijk algorithm, Rosen algorithm, Wolfe algorithm and particle swarm hybrid algorithm are used to numerically simulate the rolling transverse thickness distribution. The accuracy of the rolling model and the particle swarm hybrid algorithm are verified. The influence of work roll edge contact and asymmetric roll bending on the deformation of rolling metal is analysed based on particle swarm mixing algorithm.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation analysis of the rolling process based on the particle swarm hybrid algorithm

Yan

et al. 2023

Ironmaking & Steelmaking

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“…More specifically, the center of the strip is thicker comparing to the edges. The rolls deflection due to separating force together with thermal expansion and wear of the rolls consist of the main factors that determine the final strip profile [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Plate Crown during Aluminum Hot Flat Rolling by Finite Element Modeling

Gavalas

Papaefthymiou

2019

JMMP

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The roll deflection during hot rolling can result in uneven thickness distribution across the width of a plate (crown). A conventional rolling mill is equipped with bending systems that can control this convex shape of the plate. However, the determination of the proper bending load is very complicated as the plate crown is influenced by the rolling conditions. In this paper, a thermo-mechanical Finite Element Model on LS-DYNA™ software was utilized to predict crown evolution based on the rolling conditions in order to determine the setting values for achieving the target crown. The simulation results were compared and verified with actual industrial data for rolling force, plate temperature and plate crown. This approach is essential for pass schedule design and process parameter optimization in order to achieve the desired product quality.

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“…In past years, many researchers had focused on edge-drop control, and some positive results have been obtained [9][10][11][12]. Cao et al [13] built a three-dimensional finite element model of roll stacks and strip deformation and analyzed the integrated design of roll contours for strip edge drop and crown control in tandem cold rolling mills.…”

Section: Introductionmentioning

confidence: 99%

Edge-Drop Control Behavior for Silicon Strip Cold Rolling with a Sendzimir Mill

Zhao

Dong

et al. 2018

Metals

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Edge-drop control is important for silicon strip cold rolling, as the silicon strip is mainly used as a laminated core. Moreover, cold rolling is the key process for the thin strip edge-drop control, and a Sendzimir mill is one of the most popular cold rolling mills for silicon strips. Thus, the mastery of edge-drop control behavior for silicon strip cold rolling with a Sendzimir mill is beneficial for the improvement of the strip profile quality. With the finite element method, two models are built to analyze the edge-drop control behavior, one is the roll system and strip integrated elastic-plastic deformation statics model, and the other is the strip plastic deformation dynamics model. The first model provides the roll gap contour for the second model, then the strip profile can be calculated in the second model, which considers the transverse flow of the metal. Firstly, the compositions of edge-drop for the silicon strip are analyzed systematically, which are the edge-drop for work roll bending, the edge-drop for work roll flattening, and the edge-drop for transverse flow of the metal. Secondly, the influence of different rolling process parameters on the three parts are analyzed, such as the entrance thickness, the rolling reduction, the rolling tension, and so on; further, the influence of the roll contours are also analyzed. Finally, the edge-drop control behavior of the different rolling process parameters and roll contours are obtained. The research results provide theoretical guidance for edge drop control in the Sendzimir mill.

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Effect of Internal Stress of Incoming Strip on Hot Rolling Deformation Based on Finite Element and Infinite Element Coupling Method

Cited by 11 publications

References 15 publications

Numerical simulation analysis of the rolling process based on the particle swarm hybrid algorithm

Numerical simulation analysis of the rolling process based on the particle swarm hybrid algorithm

Prediction of Plate Crown during Aluminum Hot Flat Rolling by Finite Element Modeling

Edge-Drop Control Behavior for Silicon Strip Cold Rolling with a Sendzimir Mill

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