Advanced Frictional Models for Extrusion Application

Article Preview

Abstract:

During the extrusion processes, very complex adhesion and friction effects between the die surface and the extruded material occur. They have a strong influence on the velocity distribution in the profile, as well as on the life-term behavior of the tools. In the framework of the virtual process modeling usually the Coulomb or the Shear Friction models are applied. The practical experience shows, that those simplified descriptions of the frictional behavior result in poor FEM results. The present work relates to experimentally evaluated tribological behavior of the Torsion-Tribo-test and shows how those data can be transferred to different new friction models.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

41-48

Citation:

Online since:

December 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] P. Hora, C. Karadogan, L. Tong: Numerische Modellierung thermischer und tribologischer Randbedingungen, Conference Proceedings: Extrusion Zurich (2005).

Google Scholar

[2] C. Karadogan, F. Vanini, L. Tong, P. Hora: State of the Art and Potential Development of Digital Extrusion Modeling, Light Metal Age, Volume 63 (May 2005), No. 3, pp.40-43.

Google Scholar

[3] C. Karadogan; L. Tong, P. Hora: An Improved Modeling of Friction for Extrusion Simulations, 10TH ESAFORM Conference on Material Forming. AIP Conference Proceedings, Volume 907 (2007), pp.1325-1330.

DOI: 10.1063/1.2729698

Google Scholar

[4] P. Hora, M. Gorji, J. Maier, Analyzing the tribological phenomena in hot extrusion processes by using new Torsion-Tribo Test, ET Seminar 2012, Vol. 1 (2012) pp.461-470.

Google Scholar

[5] C. Becker, P. Hora, J. Maier, S. Müller, Experimental investigations of friction carried out with the Tribo-Torsion-Test and frictional modelling, Presented on this Conference.

DOI: 10.4028/www.scientific.net/kem.585.25

Google Scholar