A Refined Model for the Hydrodynamic Lubrication of Strip Rolling

1976 ◽  
Vol 98 (3) ◽  
pp. 426-431 ◽  
Author(s):  
W. R. D. Wilson ◽  
L. E. Murch
Keyword(s):  
Thermal Effects ◽  
High Speed ◽  
Thermal Loading ◽  
Hydrodynamic Lubrication ◽  
Film Formation ◽  
Work Zone ◽  
Work Piece ◽  
Refined Model ◽  
Forward Slip ◽  
Strip Rolling

An analytical model for the hydrodynamic lubrication of high speed strip rolling is developed. The model includes the effect of thermal loading due to back flow and slip on the film formation process. The work zone analysis takes account of thermal effects on film thickness and friction. The influence of geometry, speed and lubricant and work-piece properties on the forward slip, roll load and torque are described in detail and compared with previously published experimental data.

A Hydrodynamic Lubrication Theory for Strip Rolling Including Thermal Effects

1975 ◽  
Vol 97 (1) ◽  
pp. 4-12 ◽  
Author(s):  
T. A. Dow ◽  
J. W. Kannel ◽  
S. S. Bupara
Keyword(s):  
Thermal Effects ◽  
Hydrodynamic Lubrication ◽  
Fluid Pressure ◽  
Pressure Effects ◽  
Work Zone ◽  
Experimental Comparison ◽  
Pressure Measurements ◽  
Roll Surface ◽  
Strip Rolling ◽  
Hydrodynamic Lubrication Theory

A model of hydrodynamically lubricated cold rolling including thermal and pressure effects on the lubricant is developed in this paper. The hydrodynamic film thickness is calculated as well as the work zone pressure and shear stress distribution for several conditions assuming that the lubricant behaves as a Newtonian fluid. Pressure measurements made with vapor-deposited thin-film transducers on the roll surface are used for experimental comparison.

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