Heat transfer modeling in asymmetrical sheet rolling of aluminium alloys with ultra high shear strain

Pesin, Alexander; Pustovoytov, Denis

doi:10.1051/matecconf/20168004005

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…Since asymmetric rolling is performed with high contact friction and high thickness reduction per pass, the temperature increase in the deformation zone can be significant [74][75][76]. The temperature increase may affect the additional microstructural changes which are related to thermal softening deteriorating the mechanical properties.…”

Section: Temperature Risementioning

confidence: 99%

Asymmetric (Hot, Warm, Cold, Cryo) Rolling of Light Alloys: A Review

Pustovoytov

Pesin

Tandon

2021

Metals

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Asymmetric sheet rolling is a process used when there are differences in any technological parameters in the horizontal plane across the width of the deformation zone or in the vertical plane between the top and bottom surfaces of the deformation zone. Asymmetry can either have random causes, or it can be created purposefully to reduce rolling force, improve sheet flatness, minimize the ski effect, obtain thinner sheets and for grain refinement and improvement of texture and mechanical properties of sheet metals and alloys. The purpose of this review is to analyze and summarize the most relevant information regarding the asymmetric (hot, warm, cold, cryo) rolling processes in terms of the effect of purposefully created asymmetry on grain size and mechanical properties of pure Mg, Al, Ti and their alloys. The classification and fundamentals of mechanics of the asymmetric rolling process are presented. Based on the analysis of publications related to asymmetric rolling, it was found that a superior balance of strength and ductility in pure Mg, Al, Ti and their alloys could be achieved due to this processing. It is shown that asymmetric rolling in comparison with conventional severe plastic deformation methods have an undeniable advantage in terms of the possibility of the production of large-scale sheets.

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Section: Temperature Risementioning

confidence: 99%

Asymmetric (Hot, Warm, Cold, Cryo) Rolling of Light Alloys: A Review

Pustovoytov

Pesin

Tandon

2021

Metals

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“…Rolling is one of the most common metal-forming processes, frequently used for steels and aluminum alloys [1][2][3][4][5]. With their lower density and higher corrosion resistance, aluminum alloys will be used for increasing numbers of components in the automotive industry [6][7][8]. Of particular interest is the AA 5xxx series, because its mechanical properties have the potential to be improved by asymmetric rolling, endowing it with mechanical properties that are closer to those of steels [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Texture Evolution with Relation to Mechanical Properties of Compared Symmetrically and Asymmetrically Cold Rolled Aluminum Alloy

Kraner

Fajfar

Palkowski

et al. 2020

Metals

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The impact of asymmetric cold rolling was quantitatively assessed for an industrial aluminum alloy AA 5454. The asymmetric rolling resulted in lower rolling forces and higher strains compared to conventional symmetric rolling. In order to demonstrate the positive effect on the mechanical properties with asymmetric rolling, tensile tests, plastic-strain-ratio tests and hardness measurements were conducted. The improvements to the microstructure and the texture were observed with a light and scanning electron microscope; the latter making use of electron-backscatter diffraction. The result of the asymmetric rolling was a much lower planar anisotropy and a more homogeneous metal sheet with finer grains after annealing to the soft condition. The increased isotropy of the deformed and annealed aluminum sheet is a product of the texture heterogeneity and reduced volume fractions of separate texture components.

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“…In addition to the fact that most rolling plants utilize the same equipment for rolling a wide range of materials with various levels of mechanical properties, initial geometry of the plate and final specifications, force and temperature evolution are the fundamental questions that trouble the production engineers during the pass schedule design. Both parameters, including stress and strain profiles, can successfully be computed by the FEM that provides that valuable information even from the early steps [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

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2020

MCMS

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Heat transfer modeling in asymmetrical sheet rolling of aluminium alloys with ultra high shear strain

Cited by 5 publications

References 21 publications

Asymmetric (Hot, Warm, Cold, Cryo) Rolling of Light Alloys: A Review

Asymmetric (Hot, Warm, Cold, Cryo) Rolling of Light Alloys: A Review

Microstructure and Texture Evolution with Relation to Mechanical Properties of Compared Symmetrically and Asymmetrically Cold Rolled Aluminum Alloy

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