Finite-Element Modeling of Plate-Rolling

Богатов, А. А.; Нухов, Д. Ш.; P’yankov, K. P.

doi:10.1007/s11015-015-0069-6

Cited by 16 publications

(8 citation statements)

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“…In addition to the considered relief configuration of rolls in the form of trapezoidal projections and depressions, the configuration of rolls with radial grooves proposed in [33] was also studied.…”

Section: Methodsmentioning

confidence: 99%

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Panin,

Esbolat,

Arbuz

et al. 2024

Modelling and Simulation in Engineering

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In this paper, finite element simulation of asymmetric rolling in relief rolls of C11000 copper alloy in order to analyze the effectiveness of possible roll profiles and technological schemes of deformation was performed. The scientific innovation of this work lies in determining the patterns of development of stress-strain state parameters for various configurations of rolls, as well as determining the effectiveness of metal processing using various technological schemes. It was found that the use of trapezoidal relief makes it possible to increase the level of metal processing by almost 5 times compared with the use of radial relief. Comparison of technological schemes of deformation showed that deformation with 180° workpiece turning between passes significantly reduces the influence of the asymmetry factor. Deformation without changing the workpiece position between the passes has the opposite effect, and such a scheme significantly increases the influence of the asymmetry factor. Deformation with a transverse workpiece shift for the relief period between passes has the effect of a “golden mean.” The conducted laboratory experiment for lead billet showed that the shape change of lead billet during computer simulation has a high level of convergence with real conditions. At each stage of deformation, the difference in the geometric parameters of the workpiece between the model and the experiment did not exceed 3-5%. When deforming a copper billet, the maximum difference level was 8%, which is the result of the low rigidity of the rolling cage with smooth rolls.

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Section: Methodsmentioning

confidence: 99%

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Panin,

Esbolat,

Arbuz

et al. 2024

Modelling and Simulation in Engineering

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“…As a consequence, only normal stresses have been considered in the analysis. 5. Friction force has been modeled by Chen and Kobayashi's arc tangent function [31].…”

Section: Mathematical Modelmentioning

confidence: 99%

“…Where Q is the volumetric rate measured in [mm 2 /s]. Substitution of equation 18 in equation 17 leads to [5]:…”

Section: With Referencementioning

confidence: 99%

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Numerical and analytical estimation of rolling force and torque in hot strip rolling

Attanasio¹,

Prete²,

Primo

2023

Preprint

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In this paper, both numerical and analytical method were developed for computing, in strip or plate rolling, the distribution of roll pressure, rolling force and rolling torque (from which also rolling power can be estimated), assuming an homogeneous deformation of the rolled material. Differently to other similar models present in literature, which solve the resulting rolling differential equation for the roll pressure, the model presented in this work solves the problem for the horizontal force. In this way it is possible to avoid the calculation of the derivative of material flow stress curve, which is not always analytically easy and possible (i.e. point material flow stress data). The proposed numerical model is based on the friction law proposed by Chen and Kobayashi while the analytical one is based on simple shear friction model and brings to useful analytical formulas for a quickly calculation of rolling torque and force. Moreover, a relationship between the shear friction factor and Coulomb friction coefficient in rolling was found. The developed models show good agreement with experimental measures, in terms of rolling force and torque, found in literature.

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“…It should be pointed out that adopting the finite element method (FEM) for calculation of contact stress could produce better accuracy. But that would require massive computational time due to the complex solution process and the treatment of boundary conditions, making its difficulty for practical production [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Research of the indirect friction sensor for prediction of contact stress by improved inverse method in strip rolling

Wang

Ruan

et al. 2017

Smart Mater. Struct.

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In order to avoid strip marks or perturbation of local lubricant flow at the interface between strip and work roll in strip rolling, an indirect friction sensor has been designed. This sensor is based on the inverse method improved by envelope fitting method, which utilizes strain gage to measure strains at one point inside the work roll to evaluate the contact stress in roll gap. Then several cold rolling tests have been performed at different reductions to demonstrate the rational and the validity of this indirect friction sensor. Comparing the results evaluated by finite element method with the results reconstructed by different inverse methods, it is found that the improved inverse method leads to a better solution to evaluation of the contact stress, in particular for prediction of shear stress. In addition, reasonable prediction is obtained for large reduction but not for small reduction (only the order of magnitude is obtained). It is believed that this research has a strategic importance for practical application.

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Finite-Element Modeling of Plate-Rolling

Cited by 16 publications

References 0 publications

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Numerical and analytical estimation of rolling force and torque in hot strip rolling

Research of the indirect friction sensor for prediction of contact stress by improved inverse method in strip rolling

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