Friction Modelling in Long Bearing Channels During Multi-hole Extrusion of Aluminium Alloy
2015; Elsevier BV; Volume: 2; Issue: 10 Linguagem: Inglês
10.1016/j.matpr.2015.10.021
ISSN2214-7853
AutoresVidal Sanabria, Soeren Mueller, W. Reimers,
Tópico(s)Microstructure and mechanical properties
ResumoFriction experiments between aluminum alloy EN AW-6060 and hot working steel were carried out at low normal pressure with the Torsion-Tribo-Test at the IVP ETH Zurich, as well as at high normal pressure using the new axial friction test at the ERDC TU Berlin. Microstructural analysis and hardness mapping of the friction boundary layer confirmed a variation of the mechanical properties under sticking conditions. Combining the friction experiment results and the thermo-mechanical behavior of this alloy, a new friction model was developed. Simulations of extrusion using multi-hole dies under different friction conditions were evaluated and the results compared.
Referência(s)