  This study presents the numerical models used for the simulation of the large
viscoplastic deformations that aluminium undergoes during the extrusion process
in order to obtain industrial profiles. This study also gives examples of
results obtained by the Computational Fluid Dynamics Group of the UNLP Faculty
of Engineering, in collaboration with the company Madexa S.A., dedicated to the
manufacturing of dies for this type of processes. The equations that model the
process, the difficulties associated with its numerical resolution and the
advantages that the simulation work represent for the company are also
presented in this study.
