3D Analysis of cold rolling using a constitutive model for interface friction

Richelsen, Ann Bettina; Tvergaard, Viggo

doi:10.1016/j.ijmecsci.2004.05.013

Cited by 6 publications

(5 citation statements)

References 25 publications

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“…The neutral line of the friction in the 𝑥 direction was successfully predicted by the inverse tangent rule. Moreover, the position of the peak rolling pressure is near the neutral line, which is consistent with the results obtained by Richelsen and Tvergaard [28]. The experimental and simulation results of the width spread ratio, rolling force, and rolling torque are shown in Table 2, highlighting the accuracy of the proposed elastic-plastic FE analysis method.…”

Section: Validation Of Current Analysis Frameworksupporting

confidence: 88%

Cold Rolling Texture Prediction Using Finite Element Simulation with Zooming Analysis

et al. 2021

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Cold rolling is widely employed in the manufacturing industry for the production of metal plates. In the cold rolling process, the thickness reduction of the metal plate under the recrystallization temperature generates severe anisotropy; this influences the subsequent forming processes. Therefore, the generation and prediction of metal plate anisotropy during cold rolling is a highly interesting research topic involving upstream studies of sheet metal forming. In this study, using the finite element method with zooming analysis, we established an efficient elastic–plastic analysis method to predict the metal plate texture after cold rolling. This method for cold rolling texture prediction was confirmed by comparing the experimental and simulation results of cold rolling for an S45C plate with a body-centered cubic lattice. Further, the numerical analysis method proposed in this study can contribute to the study of anisotropy as an alternative to experimental approaches.

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Section: Validation Of Current Analysis Frameworksupporting

confidence: 88%

Cold Rolling Texture Prediction Using Finite Element Simulation with Zooming Analysis

et al. 2021

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“…The experimentally verified value of the spread (e b ) was less than 2 %, which satisfied the condition for plane strain 25,26 .…”

Section: Dimensions and Deformation Coefficients Of Rolled Stripssupporting

confidence: 67%

Deformations and velocities during the cold rolling of aluminium alloys

Misovic¹,

Tadić²,

Jacimovic³

et al. 2016

Mater. Tehnol.

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This paper presents the analysis results of investigations on the deformations and velocities during the cold rolling of strips of aluminium alloys AW2024 and AW5083 obtained with an application of the finite-element method (FEM) and the conventional rolling theory. The results of the simulation obtained using the FEM software DEFORM-2D were analysed for the displacements, effective strain and velocity of rolling. The diagrams of the changes in these values along the deformation zone were presented together with the identified characteristics of the trajectories of the surface and axis as the boundary surfaces for simulating the cold rolling of the strips. The finite effective strains were compared with the degree of reduction of the strip thickness, and equations were derived for the dependence of their ratio on the starting thickness of a strip. The equations for the dependence of the velocity of a strip and the roll ratio on the degree of reduction due to the control of forward and backward slips were also derived. The reliability of the obtained results and derived equations was tested with experimental tests, theoretical relationships for plane strain and the results for the forward slip published in the literature. Keywords: cold rolling, FEM, displacements, effective strain, forward slip lanek predstavlja analizo rezultatov preiskav deformacije in hitrosti pri hladnem valjanju trakov aluminijevih zlitin AW2024 in AW5083, dobljenih z uporabo metode kon~nih elementov (FEM) in konvencionalne teorije valjanja. Analizirani so bili rezultati simulacije, dobljene s FEM programsko opremo DEFORM-2D, za raztezek, efektivno obremenitev in hitrost valjanja. Predstavljeni so diagrami sprememb teh vrednosti vzdol`deformacijske cone, skupaj z identifikacijo zna~ilnosti trajektorij povr{ine in osi, kot mejnih povr{in za simulacijo hladnega valjanja trakov. Kon~ne efektivne obremenitve so bile primerjane s stopnjo redukcije debeline trakov in razvite so bile ena~be za odvisnost njihovega razmerja od za~etne debeline traku. Razvite so tudi ena~be za odvisnost hitrosti traku in razmerja valjev na stopnjo redukcije zaradi kontrole prehitevanja in zaostajanja traku. Zanesljivost dobljenih rezultatov in razvitih ena~b je bila preizku{ena s preizkusom, s teoreti~nimi odvisnostmi za ravninsko napetost in za rezultate prehitevanja, objavljenega v literaturi. Klju~ne besede: hladno valjanje, FEM, raztezek, efektivna obremenitev, prednji zdrs

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“…There are many different ways of dealing with the contact and most of them involve variable friction in the rolling gap [14][15][16]39,40]. Though, in the present work a constant friction coefficient along the contact arc has been considered.…”

Section: Effect Of the Frictionmentioning

confidence: 99%

“…Reducing the spread by about 1/1000th may result in millions of euros savings in the common operating costs of a facility. On top of the semi-empirical approaches, some of them involving the use of neural networks, many studies on the influence of friction on the lateral flow in slabs and in shape forming have been carried out using FEM [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%