A study of radial thermal expansion of a work roll for three-dimensional strip deformation during rolling

Lin, Zone‐Ching; Lin, Ven-Huei

doi:10.1016/s0924-0136(97)02895-1

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…Some researchers have worked on determining the hoop stresses which are responsible for radial cracks. [19][20][21] However, it is known that many rolls fail due to fretting/scaling of the roll surface. Fretting may be produced due to shear stresses.…”

Section: Resultsmentioning

confidence: 99%

“…Range of strain rate for brass compression testing was obtained from the numerical simulation. It was noted that the maximum strain rate during hot rolling occurs at the start of first pass where strain rate is 40 strain s 21 . The lowest speed where there are significant stresses in the roll material is 5 strain s 21 .…”

Section: Experimental Materialsmentioning

confidence: 99%

“…2. This stress strain diagram is for 16 strain s 21 . Tensile properties are found to be strain independent in the range of deformation speeds as described in Table 3.…”

Section: Materials Propertiesmentioning

confidence: 99%

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Comparison of thermomechanical stresses produced in work rolls during hot and cold rolling of Cartridge Brass 1101

Qayyum

Shah

Manzoor

et al. 2015

Materials Science and Technology

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Thermomechanical stresses play an important role in defining the life of the work roll used in hot rolling process. In this research temperature dependent mechanical properties of cartridge brass are determined experimentally using high temperature compression tests at different temperatures and strain rates. Real life measurements are made from a brass rolling mill as input data for the simulation boundary conditions. Hot rolls are made of AISI H11 hot work tool steel. Temperature dependent mechanical properties of AISI H11 steel are used. Thermal and mechanical stresses produced in the work rolls during hot rolling process are predicted using a thermoplastic finite element approach in the ABAQUS Standard software. Hot rolling is compared with cold rolling to determine the effects produced on the work rolls. A criterion is introduced to compare the severity of stresses produced on the rolling surfaces in case of hot rolling and cold rolling based on the yield stress of the roller material for different temperatures. A method for separating thermal and mechanical stresses in the simulation is also described.

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Section: Resultsmentioning

confidence: 99%

Section: Experimental Materialsmentioning

confidence: 99%

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Comparison of thermomechanical stresses produced in work rolls during hot and cold rolling of Cartridge Brass 1101

Qayyum

Shah

Manzoor

et al. 2015

Materials Science and Technology

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“…The first category includes thermo-mechanically coupled models that allow the hot rolling process to be simulated very accurately, for predicting with tight tolerances the final shape of rolled product, its metallurgical structure or several rolling parameters. Some examples are given in the previous studies, [3][4][5][6][7][8][9][10][11][12][13][14][15][16] just to cite a few (a detailed review is beyond the scope of this article).…”

Section: Introductionmentioning

confidence: 99%

“…These coupled models (especially 3D) thus provide a very realistic representation of the rolling process, although at the expense of a high computational cost. For this reason, improved modelling approaches and solution strategies, ranging from mixed analytical/ numerical methods, 6 finite element models [3][4][5]7,8,10,11,[13][14][15][16] or combined finite elements/boundary element formulations, 9 have been devised to alleviate the computational burden required by such complex numerical models.…”

Section: Introductionmentioning

confidence: 99%

A harmonic one-dimensional element for non-linear thermo-mechanical analysis of axisymmetric structures under asymmetric loads: The case of hot strip rolling

Benasciutti

Bona

Munteanu

2016

The Journal of Strain Analysis for Engineering Design

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This work presents a one-dimensional harmonic finite element for the transient elasto-plastic analysis of axisymmetric structures loaded by non-axisymmetric thermal and mechanical loads. The one-dimensional element exploits a semi-analytical approach, based on Fourier series decomposition of the applied loads. The initial stress method is used for the non-linear solution of elasto-plastic analysis. As a case study, the proposed one-dimensional harmonic element is applied for modelling a two-dimensional circle under thermal and mechanical loadings rotating over its surface, which is used as an approximation of a work roll in hot strip rolling. With the one-dimensional harmonic element, the cyclic thermo-mechanical behaviour of the work roll can be simulated by considering localized plasticity caused by thermo-mechanical loads representative of strip and back-up roll. Compared to two-dimensional models already used in the literature, the one-dimensional element allows a significant reduction in the computational time to be achieved; it follows that the whole transient thermo-mechanical response can be simulated, thus permitting a more complete evaluation of the stress-strain response that is necessary for fatigue life assessment. © IMechE 2016

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Application of convolutional neural networks for prediction of strip flatness in tandem cold rolling process

Wang

Liang-gui

et al. 2021

Journal of Manufacturing Processes

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A study of radial thermal expansion of a work roll for three-dimensional strip deformation during rolling

Cited by 7 publications

References 15 publications

Comparison of thermomechanical stresses produced in work rolls during hot and cold rolling of Cartridge Brass 1101

Comparison of thermomechanical stresses produced in work rolls during hot and cold rolling of Cartridge Brass 1101

A harmonic one-dimensional element for non-linear thermo-mechanical analysis of axisymmetric structures under asymmetric loads: The case of hot strip rolling

Application of convolutional neural networks for prediction of strip flatness in tandem cold rolling process

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