This paper describes the results of an experimental investigation to compare the scuffing performance of conventionally ground and superfinished hardened steel disks operating at sliding speeds of up to 26 m/s and lubricated with a gas turbine engine oil at a temperature of 100° C. The ground disks were finished in the axial direction to simulate the orientation of surface finish found on involute gears. Superfinishing was found to give a significant increase in the load at which scuffing occurred. Frictional traction was also measured in the experiments and was found to be significantly lower for the superfinished disks in the loading stages preceding scuffing failure.
Issue Section:
Research Papers
Topics:
Disks,
Failure,
Gas turbines,
Steel,
Finishes,
Gears,
Martensitic steel,
Stress,
Temperature,
Traction
1.
Bell, J. C., and Dyson, A., 1972, “The Effect of Some Operating Factors on the Scuffing of Hardened Steel Discs,” Proc. Symp. Elastohydrodynamic Lubrication, Instn. Mech. Engrs., London, pp. 61–67.
2.
Bell
J. C.
Dyson
A.
Hadley
J. W.
1975
, “The Effects of Rolling and Sliding Speeds on the Scuffing of Lubricated Steel Discs
,” Trans. ASLE
, Vol. 18
, pp. 62
–73
.3.
Blok, H., 1937, “Calculation of Surface Temperature under Extreme Pressure Lubrication Conditions,” Proc. 2nd World Petrol. Congress, Paris, Section IV, Vol. 3, pp. 471–486.
4.
Blok
H.
1939
, “Seizure Delay Method for Determining the Protection Against Scuffing Afforded by Extreme Pressure Lubricants
,” Jn. Soc. Auto. Engrs.
, Vol. 44
, pp. 193
–210
.5.
Chittenden
R. J.
Dowson
D.
Dunn
J. F.
Taylor
C. M.
1985
, “A Theoretical Analysis of the Isothermal Elastohydrodynamic Lubrication of Concentrated Contacts
,” Proc. R. Soc. Lond.
, Vol. A397
, pp. 245
–269
.6.
Christensen
H.
1969
, “Stochastic Models for Hydrodynamic Lubrication of Rough Surfaces
,” Proc. Instn. Mech. Engrs.
, Vol. 184
, pp. 10
–13
.7.
Fein
R. S.
1967
, “Operating Procedure Effects on Critical Temperature
,” Trans. ASLE
, Vol. 3
, pp. 373
–385
.8.
Ku, P. M., 1978, “Effects of Surface Roughness on Scuffing in Sliding-Rolling Contacts,” Effects of Surface Roughness in Lubrication, D. Dowson, C. M. Taylor, M. Godet, and D. Berthe, eds., Mechanical Engineering Publications Ltd., London.
9.
Ku
P. M.
Staph
H. E.
Carper
H. J.
1978
, “On the Critical Contact Temperature of Lubricated Sliding-Rolling Discs
,” Trans. ASLE
, Vol. 21
, pp. 161
–180
.10.
Leach
E. F.
Kelley
B. W.
1965
, “Temperature, the Key to Lubricant Capacity
,” Trans. ASLE
, Vol. 8
, pp. 271
–285
.11.
Matveevsky
R. M.
1965
, “The Critical Temperature of Oil with Point and Line Contact Machines
,” ASME Journal of Basic Engineering
, Vol. 89
, pp. 754
–760
.12.
Mobil Oil Corporation, 1979, Mobil EHL Guidebook, Mobil, New York.
13.
O.E.C.D., 1969, Glossary of Terms and Definitions in the Field of Friction, Wear and Lubrication, pp. 52–53.
14.
Olver
A. V.
1991
, “Testing Transmission Lubricants: the Importance of Thermal Response
,” Proc. Instn. Mech. Engrs.
, Vol. 205G
, pp. 35
–44
.15.
Paliwal, M. C., 1987, “Running In and Scuffing Failure of Marine Gears,” Ph.D. thesis, University of Wales.
This content is only available via PDF.
Copyright © 1995
by The American Society of Mechanical Engineers
You do not currently have access to this content.
