Advanced finite element modelling of plate rolling operations

Trull, M.; McDonald, D.; Richardson, A.; Farrugia, Didier

doi:10.1016/j.jmatprotec.2006.04.097

Cited by 17 publications

(13 citation statements)

References 2 publications

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“…Benasciutti et al [16] and Li et al [17] proposed an FEM model to calculate the thermal stresses occurring in the work roll due to the non-uniform temperature distribution on the roll surface due to the hot rolling process. Trull et al [18] developed an FEM model incorporating all major mill components and engineering and process conditions, including thermal camber, for the simulation of shape evolution. Bao et al [19] investigated the temperature distribution of the work roll, integrating FEM coupled electromagnetic-thermal analysis in order to include the effect of roll induction heating on the surface temperature.…”

Section: Introductionmentioning

confidence: 99%

Thermal Camber and Temperature Evolution on Work Roll during Aluminum Hot Rolling

Gavalas

Papaefthymiou

2020

Metals

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Flatness is an important quality characteristic for rolled products. Modern hot rolling mills are equipped with actuators that can modify the uneven thickness distribution across the width of the strip (crown), taking into account online measurements of various process parameters such as temperature, force and exit strip profile, either automatically or manually by the operator. However, the crown is also influenced by many parameters that cannot easily be measured during production, such as work roll temperature evolution through thickness and roll geometric variation due to thermal expansion (thermal camber). These have an impact on the strip flatness. In this paper, a thermo-mechanical finite element model on LS-DYNA™ software was utilized to predict the influence of process parameters, and more specifically strip temperature, cooling strategy (application of cooling on the entry or entry and exit side simultaneously) and roll core temperature, on the evolution of roll temperature and thermal camber. The model was initially validated with industrial data. The results indicate that the application of both entry and exit cooling is ~30% more efficient compared to the entry cooling only, thus the thermal camber will be reduced by 2 μm. A hotter roll (380 K) is more stable compared to the cold roll (340 K), showing also an improvement of 2 μm. The hotter roll will also reach a thermal steady state on the surface faster compared to the colder one, without making a significant difference on the steady state temperature. Strip temperature plays a roll in the thermal camber evolution, but it is a less important parameter compared to cooling strategy and roll temperature.

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Section: Introductionmentioning

confidence: 99%

Thermal Camber and Temperature Evolution on Work Roll during Aluminum Hot Rolling

Gavalas

Papaefthymiou

2020

Metals

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“…Many researchers have focused on the prediction of thermal camber and the methodology for heat extraction through cooling [47][48][49][50][51].…”

Section: Introductionmentioning

confidence: 99%

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2020

MCMS

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“…[10][11][12][13][14][15][16][17][18][19][20] Using FE, Trull 21 has simulated plate hot rolling operations and studied the influence of several factors on plate plan view pattern. Zhao 22 has simulated plate rolling process of different conditions by elastic-plastic FE method, and established a sizing MAS control model on the basis of the simulation results.…”

Section: Introductionmentioning

confidence: 99%

3D FE modelling of plate shape during heavy plate rolling

Ruan

Zhang

et al. 2013

Ironmaking & Steelmaking

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Using commercial finite element (FE) analysis software DEFORM-3D, a rigid plastic thermomechanical finite element model was developed to investigate inhomogeneous plastic deformations during heavy plate hot rolling. A single pass rolling process, a longitudinal rolling process and a broadside-longitudinal rolling process were simulated by this 3D FE model. The simulated results of the broadside-longitudinal rolling process were in good agreement with the actual rolled one. Basing on the simulation results, formation laws of concave side shapes and convex end shapes were clarified. Evolutions of the uneven shapes in the longitudinal rolling process and the broadside-longitudinal rolling process were analysed in detail. The results obtained from the simulation results provided guidelines for further investigation on plate plan view pattern control.

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Advanced finite element modelling of plate rolling operations

Cited by 17 publications

References 2 publications

Thermal Camber and Temperature Evolution on Work Roll during Aluminum Hot Rolling

Thermal Camber and Temperature Evolution on Work Roll during Aluminum Hot Rolling

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3D FE modelling of plate shape during heavy plate rolling

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