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Orthogonal cutting simulation of OFHC copper using a new constitutive model considering the state of stress and the microstructure effects

Communication avec acte
Author
DENGUIR, Lamice
MARTINS DO OUTEIRO, Jose Carlos
FROMENTIN, Guillaume
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
VIGNAL, Vincent
103192 Laboratoire Interdisciplinaire Carnot de Bourgogne [ICB]
BESNARD, Rémy
103192 Laboratoire Interdisciplinaire Carnot de Bourgogne [ICB]

URI
http://hdl.handle.net/10985/10925
DOI
10.1016/j.procir.2016.03.208
Date
2016

Abstract

This work aims to develop an orthogonal cutting model for surface integrity prediction, which incorporates a new constitutive model of Oxygen Free High Conductivity (OFHC) copper. It accounts for the effects of the state of stress on the flow stress evolution up to fracture. Moreover, since surface integrity parameters are sensitive to the microstructure of the work material, this constitutive model highlights also the recrystallization effects on the flow stress. Orthogonal cutting model is validated using experimental designed cutting tests. More accurate predictions were obtained using this new constitutive model comparing to the classical Johnson-Cook model.

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