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NUMERICAL ASSESSMENT OF RESIDUAL STRESSES INDUCED BY EDM PROCESS
1 : LMMP, Université de Tunis
(Ecole Nationale Supérieure des Ingénieurs de Tunis)
5 avenue Taha Hussein Montfleury 1008 -
Tunisie
2 : Procedes et Ingenierie en Mécanique et Matériaux [Paris]
(PIMM)
-
Site web
* : Auteur correspondant
Arts et Métiers ParisTech, Conservatoire National des Arts et Métiers (CNAM), CNRS : UMR8006, Conservatoire National des Arts et Métiers [CNAM]
151 boulevard de l'hôpital, 75013 Paris -
France
We propose in this study an improved thermomechanical model in order to predict numerically the state of the residual stresses in the surface layers of parts, in AISI 316L, machined by EDM. The comparison of the numerical results with the experimental measurements shows a satisfactory prediction of the profile form and the max and min values of the residual stresses. However, a certain shift is still observed in the depths perturbed by the EDM process.
