N. Bay, The state of the art in cold forging lubrication, Journal of Materials Processing Technology, vol.46, issue.1-2, pp.19-40, 1994.
DOI : 10.1016/0924-0136(94)90100-7

T. Altan, G. Ngaile, and G. S. Shen, Cold and hot forging: fundamentals and applications, 2004.

A. Dubois, L. Lazzarotto, L. Dubar, and J. Oudin, A multi-step lubricant evaluation strategy for wire drawing???extrusion???cold heading sequence, Wear, vol.249, issue.10-11, pp.249-951, 2002.
DOI : 10.1016/S0043-1648(01)00830-4

Z. M. Hu and T. A. Dean, « A study of surface topography, friction and lubricants in metal forming, Int. J. Mach. Tools Manuf, pp.40-1637, 2000.

L. Lazzarotto, A. Dubois, L. Dubar, A. Verleene, and J. Oudin, Testing of zinc phosphate/stearate coating according to true conditions of contact in wire drawing, Surface Engineering, vol.14, issue.4, pp.14-335, 1998.
DOI : 10.1016/S0043-1648(97)00080-X

J. L. Chenot, L. Fourment, R. Ducloux, E. Wey, and P. Ravassard, « Développement du logiciel FORGE3 ® en collaboration avec l'industrie », 2005.

Q. Zhang, M. Arentof, S. Bruschi, L. Dubar, and E. Felder, Measurement of friction in a cold extrusion operation: Study by numerical simulation of four friction tests, Proc 11 th ESAFORM Conference on Material Forming. INSA, 2008.
DOI : 10.1007/s12289-008-0133-x

URL : https://hal.archives-ouvertes.fr/hal-00510192

A. T. Male and M. G. Cockcroft, « A method for the determination of the coefficient of friction of metals under conditions of bulk plastic deformation, J. Inst. Metals, pp.93-131, 1964.

A. Barcellona, L. Cannizzaro, A. Forcellese, and F. Gabrielli, Validation of Frictional Studies by Double-Cup Extrusion Tests in Cold-Forming, CIRP Annals - Manufacturing Technology, vol.45, issue.1, pp.211-214, 1996.
DOI : 10.1016/S0007-8506(07)63049-2

B. P. Gouveia, J. M. Rodrigues, N. Bay, and P. A. Martins, Finite-element modelling of cold forward extrusion, Journal of Materials Processing Technology, vol.94, issue.2-3, pp.94-85, 1999.
DOI : 10.1016/S0924-0136(99)00084-9

H. W. Wagener and J. Wolf, Coefficient of friction in cold extrusion, Journal of Materials Processing Technology, vol.44, issue.3-4, pp.283-291, 1994.
DOI : 10.1016/0924-0136(94)90441-3

M. Arentoft, C. Vigso, M. Lindegren, and N. Bay, « A study of the double cup extrusion process as a friction test, Proc. of Advanced Technology of Plasticity, pp.243-250, 1996.

T. Schrader, M. Shirgaokar, and T. Altan, A critical evaluation of the double cup extrusion test for selection of cold forging lubricants, Journal of Materials Processing Technology, vol.189, issue.1-3, pp.36-44, 2007.
DOI : 10.1016/j.jmatprotec.2006.11.229

J. L. Bucaille, E. Felder, and G. Hochstetter, « Mechanical analysis of the scratch test on elastic and perfectly plastic materials with the three-dimensional finite element modelling, pp.249-422, 2001.

S. Isogawa, A. Kimura, and Y. Tozawa, Proposal of an Evaluating Method on Lubrication, CIRP Annals - Manufacturing Technology, vol.41, issue.1, pp.263-266, 1992.
DOI : 10.1016/S0007-8506(07)61200-1

W. L. Xu and K. P. Rao, Analysis of the deformation characteristics of spike-forging process through FE simulations and experiments, Journal of Materials Processing Technology, vol.70, issue.1-3, pp.122-128, 1997.
DOI : 10.1016/S0924-0136(97)00048-4

Q. Zhang, « Evaluation of friction conditions in cold forging, WP3 Report, Virtual Intelligent Forging (VIF)-CA, 2008.