The effect of roll roughness and lubricant viscosity on the loads on the mill during cold rolling of steel strips

Dick, Kevin; Lenard, John

doi:10.1016/j.jmatprotec.2004.09.091

Cited by 39 publications

(18 citation statements)

References 19 publications

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“…The morphology of the rolled aluminum surface is a reflection of the work roll surface morphology. Dick and Lenard (2005) observed an increase in surface roughness of the rolled aluminum sheet with increased work roll roughness, while showing that the aluminum sheet roughness would also depend on the reduction chosen. Frolish et al (2005) proposed that the combination of the sticking conditions and forward/ backward slip conditions, which cause ploughing and machining by the work roll asperities, would imprint the work roll surface on the rolled aluminum.…”

Section: Introductionmentioning

confidence: 85%

The influence of work roll roughness on the surface/near-surface microstructure evolution of hot rolled aluminum–magnesium alloys

Gali

Shafiei

Hunter

et al. 2016

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 85%

The influence of work roll roughness on the surface/near-surface microstructure evolution of hot rolled aluminum–magnesium alloys

Gali

Shafiei

Hunter

et al. 2016

Journal of Materials Processing Technology

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“…where p is the lubricant pressure, 1 h is the film thickness in inlet zone,  is the lubricant viscosity, t is the time, x is the position from the center of rolling mill, and 1 u is the mean inlet surface speed.…”

Section: Film Thickness Model Of the Inlet Areamentioning

confidence: 99%

“…where 0 h is the inlet film thickness, 1 u is the inlet strip speed, ) (x u is the strip speed in work zone, and v is the roll speed. The roll bite film thickness h can be determined by using the above developed models.…”

Section: Roll Bite Film Thickness Modelmentioning

confidence: 99%

Multi-factor coupling system characteristic of the dynamic roll gap in the high-speed rolling mill during the unsteady lubrication process

Wang

Jiang

Zhao

et al. 2013

Tribology International

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Fang, M. (2013). Multi-factor coupling system characteristic of the dynamic roll gap in the high-speed rolling mill during the unsteady lubrication process. Tribology International, 67 174-181.Multi-factor coupling system characteristic of the dynamic roll gap in the high-speed rolling mill during the unsteady lubrication process AbstractIn the present work, a multi-factor coupling dynamic model of a rolling mill system for a dynamic roll gap during an unsteady lubrication process was developed on the basis of the rolling theory, lubrication and the friction theory, and the mechanical vibration theory. The multi-factor coupling model of interfacial film binding was coupled with the rolling force model, dynamic roll gap interface friction model and work roll movement model. The corresponding distributions of friction and pressure at varying surface roughness and times were systematically analyzed during the unsteady mixed lubrication process. The effects of the main processing parameters on the critical speed and amplitude for self-excited vertical vibration were investigated.

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“…Because of oil high viscosity, this theory supposes that quasi no water or a tiny amount of water enters the roll bite [10]: water is mainly used as coolant fluid. The thickness of oil penetrating the contact is directly influenced by rolling speeds, oil viscosity and concentration, materials, contact pressure and roll bite geometry [8].…”

Section: Lubrication By Oil-in-water Emulsion In Cold Rolling Processmentioning

confidence: 99%

Simulation of interface temperature and control of lubrication in the study of friction and wear in cold rolling

et al. 2008

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A prototype testing device called upsetting rolling test (URT) was developed a few years ago and was recently optimised in our laboratory to simulate mechanical and thermal contact conditions in cold rolling. Moreover a new experimental protocol has been designed to reproduce the industrial quasi-boundary lubrication regime. Numerous experiments have been then carried out to study the influence of contact temperature and forward slip on friction, iron fines residues and microscopic surface aspects. A great influence of temperature on friction and wear has been put forward. An increase of the Coulomb friction coefficient associated with a decrease of the iron fines quantities has been shown when temperature increases which seems to indicate more adhesive wear.

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The effect of roll roughness and lubricant viscosity on the loads on the mill during cold rolling of steel strips

Cited by 39 publications

References 19 publications

The influence of work roll roughness on the surface/near-surface microstructure evolution of hot rolled aluminum–magnesium alloys

The influence of work roll roughness on the surface/near-surface microstructure evolution of hot rolled aluminum–magnesium alloys

Multi-factor coupling system characteristic of the dynamic roll gap in the high-speed rolling mill during the unsteady lubrication process

Simulation of interface temperature and control of lubrication in the study of friction and wear in cold rolling

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