Abstract
Friction at the interface of compression die/work piece plays an important role in the overall behaviour of metal forming processes. This work is dealing with the determination of the friction coefficient on compression loading of the aluminum alloy AA6060 and the steel 42CrMo4 as under different lubrication conditions.
The coefficient of friction was determined using cylindrical specimens with different diameter do/ height ho ratio (do/ho = 0.5, 0.67, 1.43 and 2.0). The initial specimens diameter was 4mm. Different lubrication conditions were applied: (a) dry, (b) lubrication with Molykote, (c) one Teflon layer and (d) two Teflon layers with oil film between them. The test materials were the aluminum alloy AA6060 and the steel 42CrMo4. Friction coefficients as a function of the strain were determined by the description of the curves of the deformation resistance against the do/ho values at different deformation degrees and different lubrication conditions. A comparative flow curves were determined after the elimination of the friction effect of the different do/ho values.
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References
A. Pougis, et al., Dry friction of steel under high pressure in quasi-static conditions, TribologyInternational, 67 (2013) 27–35
X. Lai, et al., An experimental method for characterizing friction properties of sheet metal under high contact pressure, Wear 289 (2012) 82–94
R.L. Chaplin and P.B. Chilson, The coefficient of kinetic friction for aluminum, Wear, 107 (1986) 213–225.
N.P. Suh and H.C. Sin, The genesis of friction, Wear 69 (1981) 91–114.
A.T. Male and M.G. Cockcroft, A method for the determination of the coefficient of friction of metals under bulk plastic deformation, J. Inst. Met. 93 (1964) 38–46.
G.T. Van Rooyen and W.A. Backofen, A study of interface friction in plastic compression, Int. J. Mech. Sci. 1 (1960) 1–27
M.V. Rastergaev, Neue Methode der Homogene Stauchen, Zavodskaja Laboratoria, 3 (1940) 354–355.
M. Kunogi, A new method of cold extrusion, J. Sci Res Inst (Tokyo), 50 (1956) 215–246
A.B. Watt and H. Ford, An experimental investigation of the yielding of strip between smooth dies, Proc. Inst. Mech. Eng. B1, (1952–1953) 448–453
M. Tajdari and M. Javadi, A new experimental procedure of evaluating the friction coefficient in elastic and plastic regions, Journal of Materials Processing Technology, 177 (2006) 247–250
G.M. Yang, et al., Contact pressure between two rough surfaces of a cylinderical fit, Journal of Materials Processing Technology, 123 (2002) 490–497.
G. E. Dieter, Mechanical Metallurgy, McGraw-Hill, London, 1988, pp 541
Moon Saeng Kim, An Analysis and Evaluation of the Dynamic Flow Function of Metals under Impact Loading, Ph.D. thesis, The University of Alabama, 1985, pp 25–50
Han Han, The validity of mathematical models evaluated by two-specimen method under the unknown coefficient of friction and flow stress, J. Mater Proc. Techn., Vol 122, 2002, p 386–396
E.G. Thomsen, Mechanics of plastic deformation in metal processing, Macmillan. New York, 1965
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Ataya, S., Emde, T. (2014). Friction Coefficients on Compression Testing Of AA6060 and 42CrMo4 with Different Lubrication Conditions. In: Grandfield, J. (eds) Light Metals 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48144-9_64
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DOI: https://doi.org/10.1007/978-3-319-48144-9_64
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48590-4
Online ISBN: 978-3-319-48144-9
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