Research on influence of rolling parameters on the rolling process based on numerical simulation

Yang, Lijun; Hu, Jiang; Ning, Liwei; Liu, Yingchun

doi:10.1504/ijmic.2009.027021

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…During the rolling process of aluminum foil, it is seen that the bending roll force undergoes a transition from positive to negative. The considerable amount of the change will lead to a noteworthy adjustment in the convexity parameter of the ultimate hot-rolled product, affecting the stability of the rolling process and reducing the thickness of the aluminum foil [23]. The application of the initial bending roll force in the subsequent rolling process of the hot-rolled product gives rise to many issues, including alterations in the shape of the plate and an excessive convexity of the aluminum foil.…”

Section: Optimization Of Bending Roller Forcementioning

confidence: 99%

Process Optimization Method for Reducing the Thickness Difference of Cathode Foil for Power Batteries

Zuo,

2024

Metals

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The rolling process of aluminum foil is subject to the issue of variable thickness, which has a substantial impact on its performance. The thickness of the aluminum foil is influenced by various factors, including the magnitude of the bending force, the distance between the rollers, the thermal expansion of the roller, and the acceleration of the rolling mill. To address the issue of quick fluctuations in bending force during the rolling process, either a positive bending force or a slight negative bending force is employed. The adjustment factor for the bending force applied to the roll gap is set to a value of 1.0. Upon conducting a comparative analysis of the thermal expansion curves of the model with varying thermal expansion coefficients, it was ascertained that an optimized coefficient of 1.71 yielded the most favorable results. The roll gap is adjusted using a sixth power equation to accommodate the rolling of materials with both low and high pressure. Subsequently, the roll is elevated by 0.2 mm and 0.18 mm for the entire duration. The findings from the rolling experiments indicate that the optimization of the process leads to a notable reduction in the variance of aluminum foil thickness.

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Section: Optimization Of Bending Roller Forcementioning

confidence: 99%

Process Optimization Method for Reducing the Thickness Difference of Cathode Foil for Power Batteries

Zuo,

2024

Metals

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“…The friction model is a non-linear one. Elastic module, heat dilatation coefficient, heat conduction rate and specific heat of the billet are the function of temperature, as shown in the reference [3]. In the rolling process, there are complicated exchange phenomena such as radiation and convection between the free surface of billet and surroundings, contact thermal conduction between the billet and roller, temperature increment of the billet by plastic deformation and heat generated by contact friction between the billet and rollers [4].…”

Section: Finite Element Model and Boundary Conditionmentioning

confidence: 99%

Numerical Analysis of Friction Distribution in the Rod Rolling Process

Yang

Qing

Huang

et al. 2010

AMM

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The three dimensional finite element models of rod have been built on the basis of thermo-mechanical coupled elastic-plastic FEM in order that the rolling process of No.5 pass is simulated accurately. The distributed rule of friction is calculated and discussed with variable initial rolling temperature, diameters of rollers, reduction in pass and rolling speeds. The results show that the fore sliding region, adhesive region and back sliding region are existent on the surface of rolling material. Furthermore, friction force is calculated by using numerical simulation method and it is a new approach in studying friction. The analysis of friction force is available for reference to optimize processing parameters in the rolling process.

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“…In the past decades, many researchers use a variety of analytical and numerical methods to study the rolling process, such as slip field method [1], upper bound method [2], finite difference method [3], boundary element method [4] and the finite element method (FEM) [5,6], which is useful for discovering the forming property of the metal. The application of numerical method in the metal forming process becomes gradually to one of the frontiers of research areas.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Different Forming Mode of Wire Based on Thermo-Mechanical Coupling Method

Yang

Ning

et al. 2012

mech

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Research on influence of rolling parameters on the rolling process based on numerical simulation

Cited by 9 publications

References 6 publications

Process Optimization Method for Reducing the Thickness Difference of Cathode Foil for Power Batteries

Process Optimization Method for Reducing the Thickness Difference of Cathode Foil for Power Batteries

Numerical Analysis of Friction Distribution in the Rod Rolling Process

Simulation of Different Forming Mode of Wire Based on Thermo-Mechanical Coupling Method

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