3D FE modelling of plate shape during heavy plate rolling

Ruan, Jinhua; Zhang, L. W.; Gu, Shitan; Wen, He; Chen, S. H.

doi:10.1179/1743281213y.0000000119

Cited by 23 publications

(25 citation statements)

References 23 publications

(31 reference statements)

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“…[35] Numerical models focused on this phenomenon, demand for a complete 3D modeling of the plate (or a quarter of the plate), including fillet, head, tail, and side crops which were developed and published by Trull et al and Ruan et al. [35,42] The accumulated equivalent plastic strain along the actual thickness of the plate, evaluated in the lateral center yz-plane of the heavy plate, is shown in Figure 8b. As the process continues, the profile shows a pronounced minimum at the core.…”

Section: Deformation Of the Filletmentioning

confidence: 99%

Toward a 2D/3D Finite‐Element–Based Digital Shadow for the Approximation of Metrologically Inaccessible Dynamic Fields of State Variables during Heavy Plate Rolling

Nemetz

Parteder

Reimer

et al. 2023

steel research int.

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Heavy plates are products of global economic relevance. Due to the high requirements for this semifinished product, the trend in heavy plate processing is toward providing ever higher quality steels that, for instance, combine a predefined yield point, good weldability, and, at the same time, predefined toughness properties. Unprecedented quality requirements in steel processing can only be met if technologically relevant parameters, such as temperature, are guaranteed to be kept within a narrow tolerance range during the hotrolling process, one of the most decisive steps within the production chain for heavy plates. Within the heavy plate hot-rolling process, often performed in a reversing four-high mill stand consisting of a pair of work rolls and a pair of backup rolls, various production steps like rolling passes, descaling sequences, and cooling periods, determine the plate's temperature evolution. [1] In parallel, temperature evolution affects the microstructure and, thus, associated physical properties of the final product, such as hardness and toughness. [2] It is, therefore, of utmost importance to consider the evolution of the temperature field inside the heavy plate as a specification when planning the entire process that reaches from the slab's exit from the furnace to the last pass.All in all, the production steps of hot rolling govern the plate temperature in two fundamentally different scenarios: sufficiently far from the roll bite, the plate temperature decreases moderately through air cooling or abruptly on the surface of the plate through contact with water which is applied locally in the form of high-pressure jets provided by a water descaling unit. Inside the roll bite, the plastic deformation is accompanied by heat generation inside the plate, and simultaneously the contacting cooler work rolls reduce the temperature at its surfaces. These and other thermomechanical effects can hardly be measured, which is the reason why models are utilized for better insight. As digital transformation has become a significant innovation driver, a digital representation of the process in the form of an integrated digital model, digital shadow, or digital twin has to cover these potentially interfering thermomechanical aspects. [3,4] Modeling and simulation have been integral to the research and development of rolling processes for decades. An incomplete but representative selection of milestones, in chronological order, is intended to outline the road to comprehensive modeling approaches available today: The journey started with basic

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Section: Deformation Of the Filletmentioning

confidence: 99%

Toward a 2D/3D Finite‐Element–Based Digital Shadow for the Approximation of Metrologically Inaccessible Dynamic Fields of State Variables during Heavy Plate Rolling

Nemetz

Parteder

Reimer

et al. 2023

steel research int.

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“…1 The relationship between the plate edge shapes and the rolling parameters was determined by analysing the simulation results. Then, mathematical prediction models for the uneven shapes were established by non-linear regressive analysis of the simulation results and modified using the lengths of the uneven shapes for higher accuracy.…”

Section: Introductionmentioning

confidence: 99%

Regression models for predicting plate plan view pattern during wide and heavy plate rolling

Ruan

Zhang

et al. 2013

Ironmaking & Steelmaking

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On the basis of Shagang Group's 5000 mm heavy plate mills, conventional rolling processes with different broadside rolling ratios were simulated by the three-dimensional rigid plastic thermomechanical finite element (FE) model developed in the author's previous work. By analysing the simulation results, it was found that the final plate plan view patterns after hot rolling processes were bound closely to the broadside rolling ratio and the finishing rolling ratio. Then, predictive models for plate end edge shapes and side edge shapes were formulated by nonlinear regressive analysis of the simulation results and modified by the lengths of the uneven shapes for higher accuracy. The validity of the prediction models was confirmed by comparing the predicted concavity and convexity lengths with those measured from industrial tests. The predicted plate edge shapes were in good agreement with those of the FE simulation. On the basis of the plate plan view pattern prediction models, methods to improve the plate plan view pattern are discussed.

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“…Models belonging to the second category are proposed, e.g., in [13][14][15][16]. A FEM simulation was used in [14] to predict the camber and the lateral movement of a hot rolled strip with an elastic-plastic material model.…”

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confidence: 99%

“…A 3D-FE model is used in [16] to predict the shape of heavy plates in hot rolling. In particular, a rigid plastic thermomechanical FEM was developed to investigate inhomogeneous plastic deformations.…”

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confidence: 99%

Mathematical modeling of the contour evolution of heavy plates in hot rolling

Schausberger

Steinboeck

Kugi

2015

Applied Mathematical Modelling

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a b s t r a c tThis paper deals with modeling of the contour evolution of heavy plates in hot rolling. During the rolling process asymmetric rolling conditions, such as temperature gradients or non-homogeneous input thickness profiles, may lead to a non-rectangular plate contour. A continuum mechanics approach is employed to systematically derive the contour evolution of the plate based on the input and output thickness. The mathematical model covering deviations in two dimensions is solved using methods for plane problems in mechanics. A comparison between the simulated contour evolution and measurement data from a real rolling process indicates the good accuracy of the model. Moreover, the model can be executed within one millisecond on a standard computer which stresses its realtime capability. A short analysis of the main reasons for the generation of camber utilizing the proposed model is presented.

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3D FE modelling of plate shape during heavy plate rolling

Cited by 23 publications

References 23 publications

Toward a 2D/3D Finite‐Element–Based Digital Shadow for the Approximation of Metrologically Inaccessible Dynamic Fields of State Variables during Heavy Plate Rolling

Toward a 2D/3D Finite‐Element–Based Digital Shadow for the Approximation of Metrologically Inaccessible Dynamic Fields of State Variables during Heavy Plate Rolling

Regression models for predicting plate plan view pattern during wide and heavy plate rolling

Mathematical modeling of the contour evolution of heavy plates in hot rolling

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