Encyclopedie de la recherche sur l'aluminium au Quebec - Edition 2014 | Page 69

TRANSFORMATION ET APPLICATIONS // TRANSFORMATION AND APPLICATIONS Material Behavior Modeling for High MODÉLISATION SIMULATION Speed Machining DU COMPORTEMENT DU MATÉRIAU POUR LA ET 7075-T651 simulation of 6061-T6 DE L'USINAGE À HAUTE VITESSE DES ALLIAGES 6061-T6 and 7075-T651 Alloys MATERIAL BEHAVIOR Modelisation du comportment du materiau MODELING FOR HIGH SPEED MACHINING SIMULATION OF 6061-T6 AND 7075-T651 ALUMINUM ALLOYS pour la simulation de l’ usinage à haute vitesse des alliages 6061-T6 et 7075-T651 67 Walid Jomaa, Victor Songmene, and Philippe Bocher Mechanical department, École de technologie supérieure, Quebec, Canada Abstract: the present study proposes an original method for the identification of Marusich’s constitutive equation (MCE) for finite element simulation of high speed machining. The material constants for the aluminums 6061-T6 and 7075-T651were identified inversely using orthogonal machining tests and dynamic tests. Strain rate sensitivity of aluminum alloys Marusich’s constitutive equation (Marusich, 1995) 1+