Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-43 - C4-46
DOI http://dx.doi.org/10.1051/jp4:1994407
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-43-C4-46

DOI: 10.1051/jp4:1994407

Traitement de surface en continu avec un laser Nd:YAG impulsionnel

F. LEMOINE1, 2, D.F. GREVEY2, I. VASTRA3 and A.B. VANNES1

1  CALFETMAT, MMP, Ecole Centrale de Lyon, BP. 131, 69131 Ecully, France
2  LTm, IUT, 12 rue de la Fonderie, 71200 Le Creusot, France
3  Centre Technique, FRAMATOME, 3 rue du Guide, 71200 Le Creusot, France


Abstract
This work presents the results of investigations in case of laser cladding with a pulsed Nd:YAG laser. We discuss about the experimental parameters in view to realize single clad and particulary the laser data (energy, frequency, pulse duration). The main results are the clad formation beyond an energy threshold and beyond a threshold pulse duration, the clad behaviour is the same as a clad obtained with a cw laser. Thanks to a cross-section modeling, we compare calculations with experiments and we conclude that the interaction efficiency depends widely on powder spray characteristics.



© EDP Sciences 1994