Numerical analysis of asymmetric rolling accounting for differences in friction

Richelsen, Ann Bettina

doi:10.1016/0924-0136(94)90333-6

Cited by 17 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Shear values and shear coefficients were reported for asymmetric rolling in several papers [3,6,28,29,30,31]. The shear strain distributions within the thickness were examined experimentally in Reference [29] with the help of indentation marks, and by simulations in [29,30,31,32,33,34,35]. The main finding of Roumina et al [29] was that higher TRPPs in asymmetric rolling lead to more uniform shear distribution in multi-passes for the same total thickness reduction.…”

Section: Discussionmentioning

confidence: 99%

Tailoring One-Pass Asymmetric Rolling of Extra Low Carbon Steel for Shear Texture and Recrystallization

et al. 2019

View full text Add to dashboard Cite

Systematic single pass rolling experiments were carried out at room temperature on extra low carbon steel by varying the roll diameter ratio between 1:1 to 1:2 and thickness reduction per pass in the range of 20–75%. The aim of this study was to define the conditions under which the rolling texture can transit into a shear texture. The consequences for grain fragmentation, tensile strength, recrystallization texture, and grain growth kinetics were also studied. It was found that in a certain range of thickness reduction per pass and asymmetric ratio, an effective rotation towards the shear texture takes place in conventional rolling. The value of the shear coefficient factor (shear strain rate/rolling strain rate) in asymmetric rolling depends on the selection of thickness reduction per pass. The measured value of shear coefficient was found to be independent of the number of passes used in asymmetric rolling. The consequence of arising shear textures is an acceleration of grain fragmentation. After rapid heat treatment, both tensile strength and recrystallization kinetics of asymmetric rolled sheets showed merits over the conventional rolling. Only the evolved Goss orientation from asymmetric conditions of deformation shows higher stability than any other preferred shear texture components after complete recrystallization.

show abstract

Section: Discussionmentioning

confidence: 99%

Tailoring One-Pass Asymmetric Rolling of Extra Low Carbon Steel for Shear Texture and Recrystallization

et al. 2019

View full text Add to dashboard Cite

show abstract

“…If this technology can be applied to the rolling process of the thick plate, researchers suppose that there will be more shear strain appearing inside the plate and this is good for promoting the plastic deformation inside the plate [4]. Due to higher computation speed and easier modelling process, the nite element method is adopted to study the cross shear rolling process [5]. Although cross shear rolling promotes plastic deformation at the center of the thick plate, bending of the thick plate appears at the same time and this leads to the infeasibility of the application of the technology.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Exit Thickness and Its Compensation after Snake Rolling of Aluminum Alloy Thick Plate

Wang

Wei-dong

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Asymmetrical deformation zone of the snake rolling process results in complex metal flow and unknown edge of the deformation zone. In this study, three assumptions about the location of exit thickness appear and the exit thickness is calculated by those three assumptions. By comparing the exit thickness obtained by formulas and the finite element method, one formula with high accuracy is verified and the plastic deformation of the thick plate under several snake rolling conditions is obtained. The results show that through comparing the minimum thickness in different assumptions, the exit of the plastic deformation zone is located at the midpoint of the line between two work rolls’ axis and the exit thickness is approximately equal to the length of the line which includes that midpoint and locates between the two work rolls in the vertical direction. Then with the increasing offset distance, the exit thickness increases and that leads to less deformation inside the plate. For maintaining the exit thickness equal to the preset value, an exit thickness compensation model is established according to the geometry of the deformation zone and verified by the results of simulations.

show abstract

“…The first study in asymmetric rolling has been performed in 1948 by Sachs and Klinger [1] for the development of a homogeneous deformation model. Based on this first approach, some researchers used this concept to study the evolution of rolling process parameters, such as rolling torque, force separation or sheet curvature [2][3][4][5][6][7]. Others studied the metal flow behavior during asymmetric rolling [8,9] and the relation between geometrical parameters and the initial blank and the kinetics of material [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

Vincze

Simões

Butuc

2020

Metals

View full text Add to dashboard Cite

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.

show abstract

Numerical analysis of asymmetric rolling accounting for differences in friction

Cited by 17 publications

References 8 publications

Tailoring One-Pass Asymmetric Rolling of Extra Low Carbon Steel for Shear Texture and Recrystallization

Tailoring One-Pass Asymmetric Rolling of Extra Low Carbon Steel for Shear Texture and Recrystallization

Prediction of Exit Thickness and Its Compensation after Snake Rolling of Aluminum Alloy Thick Plate

Asymmetrical Rolling of Aluminum Alloys and Steels: A Review

Contact Info

Product

Resources

About