Simulation of plane-strain rolling by the rigid-plastic finite element method

Mori, Ken-ichiro; Osakada, Kozo; Oda, Takashi

doi:10.1016/0020-7403(82)90044-3

Cited by 168 publications

(50 citation statements)

References 13 publications

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“…Moreover, the comparison between patterns in Fig. 2 and those found in [ 1,5,6 ], for instance, shows acceptable agreement. Thus, the numerical solution of the coupled thermomechanical problem of hot rolling of a metal sheet in a multi-cell rolling mill is completed and verified.…”

Section: (5)mentioning

confidence: 53%

“…For that purpose we solve the coupled thermo-mechanical problem of hot sheet rolling in Cell 1, as specified above. We employ the licensed FEM software MARC, using 4-node isoparametric finite elements with three degrees of freedom which account for displacements along axes x and y and temperature [ 1,14 ]. Then, we find from Fig.…”

Section: (5)mentioning

confidence: 99%

“…A major part of rolling-related studies tackle the mechano-mathematical modelling of plastic forming, usually accounting for a rigid-plastic material. Noteworthy, in this respect are the papers [ 1,2 ] and the results of [ 3 ] while [ 4 ] gives reference of metal and alloy mechanical characteristics under normal and high temperature. Modern approaches such as [5][6][7][8] ] attack the rolling problem using FEM technique while [9][10][11] ] and others treat the formation and evolution of metal microstructure during hot rolling.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of the Rolling Speed of a Multi-cell Mill for Metal Sheet Hot Rolling

Kazandjiev¹

2013

Proceeding BAS

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The study analyses the operation of a multi-cell mill for hot rolling of steel sheets, where the roll speed in each cell is previously known. A possible variation of metal speed during sheet pass through each cell is found keeping the requirement of metal continuous flow. An actual metal speed distribution throughout the mill is also found, solving the coupled thermo-mechanical problem of metal plastic forming by employing FEM.Key words: rolling speed, coupled thermo-mechanical problem, plastic deformation, sheet cooling, FEM 1. Introduction. As it is known, rolling is one of the basic metal forming processes producing sheets, tubes, profiles with different shape of the cross section, etc. A major part of rolling-related studies tackle the mechano-mathematical modelling of plastic forming, usually accounting for a rigid-plastic material. Noteworthy, in this respect are the papers [ 1, 2 ] and the results of [ 3 ] while [ 4 ] gives reference of metal and alloy mechanical characteristics under normal and high temperature. Modern approaches such as [ 5-8 ] attack the rolling problem using FEM technique while [ 9-11 ] and others treat the formation and evolution of metal microstructure during hot rolling. Yet, despite the numerous results in the field, it seems useful to perform a more detailed analysis of the problem of metal speed synchronization during sheet pass through a multi-cell mill since most studies analyze multipass sheet rolling within a single cell.

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Section: (5)mentioning

confidence: 53%

Section: (5)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of the Rolling Speed of a Multi-cell Mill for Metal Sheet Hot Rolling

Kazandjiev¹

2013

Proceeding BAS

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“…For example, Weroński et al [16] worked on drop forging of a piston using slipline fields and FEM. Likewise, Mori et al, [17] used finite element method in simulating rigid-plastic planestrain rolling and Synka and Kainz, [18] used a novel mixed Eulerian-Lagrangian finite-element method for steady-state hot rolling processes.…”

Section: The Finite Element Methodsmentioning

confidence: 99%

Slip Line Field Solution for Second Pass in Lubricated 4-High Reversing Cold Rolling Sheet Mill

Oluwole¹,

Olaogun²

2011

ENG

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The development of a possible slip line field (slf) for theoretical calculations of the deforming pressure (load) in a second pass of a lubricated cold rolling sheet mill and validation using values from an aluminium sheet rolling mill was done in this work. This will be relevant in the manufacturing industries providing an easy method for determining necessary applied rolling load. Experimental rolling was carried out to observe the shear lines in the deformation field. Construction of possible slip line field model was developed adhering strictly to assumptions of rigid plastic model. Calculation of the deforming force/load was achieved using Hencky's equation. Results showed that the load calculations for constructed slip line field using aluminium sheet rolling as an example tallied with values obtained from Tower Aluminium rolling mill. Slip line fields constructed for the second pass described adequately the rolling pressure in the cold rolling process, giving a valid solution of the exact load estimates on comparison with the industrial load values. Roll pressure along the arc of contact rose fairly linearly from the entrance to a maximum at the exit point. This work showed that slf for the first pass in a cold rolling mill cannot be used for subsequent passes; it requires construction of slfs for each pass in the cold rolling process.

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“…17) In the last decade of the 20th century, finite element analyses of metal forming processes began to be used in practice. [18][19][20] An example of the shape rolling processes was presented by Yanagimoto et al 21) and is illustrated in Fig. 1.…”

Section: Deformation Analysismentioning

confidence: 99%

Numerical Analysis for the Prediction of Microstructure after Hot Forming of Structural Metals

2009

Mater. Trans.

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The importance of structural metals for industrial applications is based on their superior combination of mechanical properties-strength, elongation, toughness and corrosion resistance-achieved at the end of forming processes. A numerical analysis for the prediction of microstructure is strongly required for the optimization of hot forming process parameters, because the microstructure of structural metals, which has the significant effects on mechanical properties, is strongly dependent to forming process conditions as well as the chemical composition. The incremental dislocation density and microstructural evolution analysis method enables the prediction of the change in microstructure after forming. The outline of the analytical scheme is explained briefly, and the results of its application to strip rolling, bar rolling and shape rolling are presented. Finally, the remaining research topics in this field are discussed.

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Simulation of plane-strain rolling by the rigid-plastic finite element method

Cited by 168 publications

References 13 publications

Assessment of the Rolling Speed of a Multi-cell Mill for Metal Sheet Hot Rolling

Assessment of the Rolling Speed of a Multi-cell Mill for Metal Sheet Hot Rolling

Slip Line Field Solution for Second Pass in Lubricated 4-High Reversing Cold Rolling Sheet Mill

Numerical Analysis for the Prediction of Microstructure after Hot Forming of Structural Metals

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