The influence of roll speed on the rolling of metal plates

Wang, Bo; Wang, Hu; Kong, Lingxue; Hodgson, Peter

doi:10.1007/bf03026423

Cited by 3 publications

(8 citation statements)

References 3 publications

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“…The roll speed is directly related to the roll separating force, contact pressure, and residual stresses. The simulation study by Wang et al [57] shows that increasing roll velocity reduces the roll separating force and substantially decreases the magnitude of residual stresses. The residual stresses affect the properties of roll-bonded material more than the conventional rolled products.…”

Section: Resultsmentioning

confidence: 99%

Surface roughness – the key for roll bonding aluminium

Biradar

Rijesh

2023

Materials Science and Technology

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In this study, the commercially pure aluminium is roll bonded at ambient temperatures. The effect of surface roughness and roll speed on the bond strength is evaluated by using the lap shear test. It is observed that the bond strength increased considerably with increasing surface roughness. The deformation caused owing to scratch brushing changed the surface roughness profile, which is the salient reason for the bond strength variation. Continuous striations with peaks and valleys of small-scale heights are observed at lower roughness values. Increasing roughness has reformed them into discrete profile asperities with sharp tips, influencing localised junction formation. On the other hand, the roll velocity has shown hardly any effect on the roll bonding of aluminium. With thorough investigation, it was conclusively explained that the effective change in the bond strength was not appreciable with varying the roll speed, provided the roll bonding takes place at optimised surface roughness conditions.

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Section: Resultsmentioning

confidence: 99%

Surface roughness – the key for roll bonding aluminium

Biradar

Rijesh

2023

Materials Science and Technology

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“…This is probably due to disappearance of the neutral point for the higher roll speed cases in the study. For the case of the highest roll speed, the pressure curve becomes not only oscillatory, but also flattened, indicating a more averaging distribution of pressure along the contact arc [1]. Figure 8.…”

Section: Numerical Simulationsmentioning

confidence: 97%

“…The steel plate of an original square cross section of 40 mm by 40 mm with a length of 100 mm is reduced to 30 mm in thickness by rolling through the one roll stand [1]. In this paper we described and analyzed the two dimensional rolling of thick plates.…”

Section: Problem Definitionmentioning

confidence: 99%

“…Table 1. The methodology is used for this study Plane strain problem, Element = CPE4R and Explicit Dynamic analysis [1]. No rate dependence and temperature dependence are taken into account.…”

Section: Problem Definitionmentioning

confidence: 99%

“…The main interest of this study is to see whether the roller speed and the diameter of the roller have any influence on the contact pressure, the Von Mises stresses in the thick strip materials. B.Wang, W.Hu, L.X.Kong, and P.Hodgson et al [1] was studied residual stress, contact pressure and rolling force by changing the roll speed on the cold rolling of metal plates. J.C.Lin [2] was studied by changing the dimensions of the thin plates and roller diameter.…”

Section: Introductionmentioning

confidence: 99%

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FEM Analysis of Effect of Rolling Parameters on Cold Rolling Process

Devarajan¹,

Ramesh²,

Marimuthu³

2012

BIJIEMS

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A FEM simulation study was carried out to investigate the influence of the rolling parameters on the rolling process. Using commercial FEM software, ABAQUS, a number of cases were studied. In this paper, a two-dimensional Elastic-plastic finite element model to simulate the cold rolling of thick strip with different roll angular velocity and roll diameter models is described. The angular velocity of the rigid rolls ranged from 30 to 480 revolutions per minute (r.p.m.) and the rigid roll diameter ranged from 100 to 300 mm. The initial feeding speed of the plate and friction was kept constant, thus causing a slip between the plate and the roll surfaces. The main interest of this study is to see whether the speed of the rolls and the diameter of the rolls have any influence on the contact pressure and the residual stress in cold rolling process. The roll speed is an easily controlled operational parameter which may be used to enhance the process and the quality of the final products by changing the roller diameter and see the effect of stress and contact pressure on the thick plates strip is new one

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An intelligent system for predicting roll pressure in the cold rolling of Ti6Al4V

Ch¹,

Krishna²,

Kiran³

et al. 2021

Eng. Res. Express

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Cold rolling is the most widely used metal forming process in which the metal sheet is passed in between a set of rolls. Roll pressure is the major parameter that influences thickness reduction. In the present work, explicit dynamic analysis was performed using Finite Element (FE) models to simulate the cold rolling process. Process parameters such as speed of the rolls, roller diameter, friction coefficient, and thickness reduction were considered for the investigation. Results from the FE simulation were used for training the artificial neural network (ANN) to estimate the roll pressure acted on the billet. The ANN model was developed in MATLAB and the numbers of neurons, as well as training and transfer functions of an artificial neural network, are varied for analysing the results. An optimal network is developed for predicting the roll pressure. The developed network is capable of considering the effect of main parameters such as roll speed, roll diameter, inlet thickness and outlet thickness of plate, and coefficient of friction. The developed network could successfully predict the roll pressure and the values are in close agreement with FE simulation. The developed ANN model is capable of predicting the roll pressure in different cold rolling conditions accurately.

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The influence of roll speed on the rolling of metal plates

Cited by 3 publications

References 3 publications

Surface roughness – the key for roll bonding aluminium

Surface roughness – the key for roll bonding aluminium

FEM Analysis of Effect of Rolling Parameters on Cold Rolling Process

An intelligent system for predicting roll pressure in the cold rolling of Ti6Al4V

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