A NEW METHOD FOR DESCRIBE THE EFFECT OF E.H.D LUBRICATION ON THE PRESSURE DISTRIBUTION IN COLD ROLLING
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Abstract
he present study has been carried out to investigate the effect of Elasto Hydrodynamic Lubrication (EHL) on the pressure distribution of cold rolling strip by taking new conditions, which give new results in the theoretical analysis. This analysis takes into consideration the variation of the yield stress of the material, the position of the neutral angle (0) and the shear stress along the direction of rolling.The results obtained from the numerical method are in good agreement with the previous experimental result.
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Avitzur and Grossman. G. (1972), Hydrodynamic Lubrication in the Rolling of Thin Strips, Journal of Engineering for Industry, Trans. ASME, series B, Vol.94, No.1, p317-328.
Bedi, D.S. and Hillier, (1968), Hydrodynamic Model for Cold Strip Rolling. Proc. I. Mech. E., Vol.182, part 1. p.158-162.
Bland . D.R and Huge Ford, (1948), The Calculation of Roll Force and Torque in Cold Strip Rolling with Tensions, Proc. Inst. Mech. ngrs.159.
Cheng, HS., (1966), Plastohydrodynamic Lubrication, friction and lubrication in metal processing. ASME, New York
Dowson and G.R.Higginson, (1966). Elsto-Hydrodynamic Lubrication, Pergamon, Oxford.
L.Chang, T.F.Conry, C.Cusano, (1989), An efficient, Robust, Multi-level computational algorithm for E.H.D. Lubrication, ASME, Journal of Tribology, Vol.111. p. 193.
T.A.Dow, JW Kannel and S.S. Bupara, (1975), A Hydrodynamic Lubrication Theory for Strip Rolling Including Thermal Effect, ASME Journal of Lubrication Technology, Vol.97, p.4-13.
Venner.C.H. Tennapel. W.E, Bosma R. (1990), Advanced Multilevel Solution of E.H.L. Line Contact Problem, ASME, Journal of Tribology, Vol. 112, p. 426,
Wilson W.R.D and Walowit.I.A. (1971), An Isothermal Hydrodynamic Lubrication Theory for Strip Rolling with Front and Back Tension, in Tribology Convention, I.Mech.E. London, p. 169-172.
W.R.D Wilson and L.E. Murch, (1976), A Refined Model for Hydrodynamic Lubrication for Strip Rolling, ASME, Journal of Lubrication Technology, Vol.98, p.426-432.
Whiston.P.W and Ford H. (1955), Surface Friction and Lubrication in Cold Rolling ,Proc Inst. Mech Engrs. 169, p.123.
Yuan.k, Chern.B.C, (1990), A Thermal Hydrodynamic Lubrication Analysis for Entrained Film Thickness In Cold Strip Rolling, ASME, Journal of Tribology, Vol.112, p. 128-134.