Theoretical and experimental analysis of the deformation zone and minimum thickness in single-roll-driven asymmetric ultrathin strip rolling

Feng, Yanfeng; Liu, Wenwen; Yang, Tianyue; Du, Feng; Sun, Jianliang

doi:10.1007/s00170-019-04027-z

Cited by 12 publications

(7 citation statements)

References 22 publications

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“…Sometimes, two or all three methods are combined. For example, a single-roll drive asymmetric rolling is used for production of ultra-thin strips mostly for applications in micromanufacturing, where in addition to the speed ratio, the diameters of the rolls are different [24]. [25], with permissions from authors, 2020).…”

Section: Methodology Of Asymmetric Rollingmentioning

confidence: 99%

Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

Vincze

Simões

Butuc

2020

Metals

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Asymmetric rolling is an attractive metal forming process due to its simplicity, low cost and capability to produce unique characteristics in materials. The asymmetry promoted by the process leads to a formation of a large collection of texture components and a refined structure which is capable to improve the mechanical behavior of metallic materials. The aim of this work is to present a perspective of the process and to construct the bases for future development and application of this technique. Thus, several aspects are addressed such as process methods (i.e., dissimilarity of the rolls diameters, rolls angular speed or friction conditions), the process parameters (i.e., total thickness reduction, thickness reduction per pass, peripheral speed ratio, rolling routes) and their effect on material properties, including texture and microstructure evolution, and mechanical properties. This review is focused on the experimental description of asymmetric rolling applied to aluminum alloys and steels. Although the asymmetric rolling application was mostly at a laboratory scale, there is a good perspective for its implementation in the industry. The pros and cons based on the up to date literature and authors’ experience are presented and discussed.

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Section: Methodology Of Asymmetric Rollingmentioning

confidence: 99%

Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

Vincze

Simões

Butuc

2020

Metals

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“…In 2019, Feng and coworkers [38] suggested a modified formula, initially presented for the symmetric rolling process, to obtain the minimum thickness limit for different diameter single-roller-driven asymmetric rolling. Their study included a finite element simulation on the commercial software MSC.Marc to predict the deformation contour and the friction stress on the top and bottom surfaces of the cross-shear zone.…”

Section: Sverdlik and Coworkersmentioning

confidence: 99%

A Short Review on the Finite Element Method for Asymmetric Rolling Processes

Graça

Vincze

2021

Metals

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Several studies on asymmetric rolling processes use the Finite Element Method (FEM) to predict material deformation and optimize process parameters, such as rolls’ forces and torques. Early studies focused on the observation and measure of curvature effects due to the asymmetric conditions. However, these models could not predict mechanical behavior associated with the texture evolution during the rolling processes. More recent studies introduced crystal plasticity (CP) models into the FEM to analyze and quantify the texture evolution during plastic forming. However, these coupled techniques need more investigation, especially concerning the mechanical behavior of the material during and after multi-stage ASR procedures. The purpose of this work is to present an up-to-date literature review on the implementation of asymmetric rolling processes in finite element analysis. It shows a summarized overview of the asymmetric rolling model parameters from different authors and gives a brief description of the crystallographic models used in their studies. In the end, some suggestions for future work dedicated to the analysis of ASR through FEM are given.

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“…Tang et al [ 16 ] investigated the minimum reliable thickness by introducing the percentage of the cross-shear zone. Feng et al [ 17 ] analyzed the minimum thickness of single-roll-driven asymmetric rolling theoretically with finite element models and theoretical analytical models.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Mechanical Parameters in Multi-Pass Asymmetrical Rolling of Strip by Slab Method

Zhao,

Hu,

Liu

2023

Materials

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Mechanical parameters, time consumption and energy consumption are important considerations in the application of a certain rolling process. This study aims to investigate characteristics of the roll force, roll torque, roll power, rolling time and total work in multi-pass asymmetrical rolling of strip. Mathematic models were built using the slab method to calculate parameters in the asymmetrical rolling process, and the characteristics of these parameters were analyzed on the basis of simulation results. Mechanical parameters are affected by the change of deformation region type. When the speed ratio is less than the critical speed ratio, the roll force, absolute values of roll torque and roll power are found to increase with the increase in the speed ratio. After the speed ratio reaches the critical speed ratio, the roll force, roll torque and lower roll power keep constant, but the upper roll power continues increasing. The upper roll torque and upper roll power required by asymmetrical rolling are much greater than that by symmetrical rolling, which indicates that stronger drive shafts and more powerful drive motors are required by asymmetrical rolling. Compared with symmetrical rolling, asymmetrical rolling requires less roll force to obtain the same thickness reduction, especially for thin and hard strips. Rolling time can be saved at the cost of more energy consumption by using asymmetrical rolling with the same roll force to attain the same final thickness. The results and conclusions of this study can provide a reference for mill design and application of asymmetrical rolling in strip manufacturing.

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Theoretical and experimental analysis of the deformation zone and minimum thickness in single-roll-driven asymmetric ultrathin strip rolling

Cited by 12 publications

References 22 publications

Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

A Short Review on the Finite Element Method for Asymmetric Rolling Processes

Analysis of Mechanical Parameters in Multi-Pass Asymmetrical Rolling of Strip by Slab Method

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