J. Phys. IV France
Volume 120, December 2004
Page(s) 743 - 750

J. Phys. IV France 120 (2004) 743-750

DOI: 10.1051/jp4:2004120086

Thermal influence of cutting tool coatings

J. Rech1, J.L. Battaglia2 and A. Moisan3

1  LTDS, École Nationale d'Ingénieurs de Saint-Étienne, 58 rue Jean Parot, 42000 Saint-Étienne, France
2  LEPT, École Nationale Supérieure d'Arts et Métiers, 33405 Talence, France
3  LABOMAP, École Nationale Supérieure d'Arts et Métiers, 71250 Cluny, France

The paper deals with the qualification of the thermal behaviour of the system "work material - coated carbide cutting tool - chip", with the purpose of reaching a better understanding of the heat flow entering into the tool substrate during a turning operation. Heat transfer in deposit-substrate system was analysed by basing on a simple geometry example. A model of heat transfer in the cutting tool has been proposed. Results show that coating's thermal barrier role does not exist in continuous cutting operations, but that it is significant in discontinuous cutting operations especially with high speed cutting conditions.

© EDP Sciences 2004