EXPERIMENTAL STUDY OF THE LASER INDUCED PLASMA IN WELDING CONDITIONS WITH CONTINUOUS HIGH POWER CO2 LASERS A. POUEYO, L. SABATIER, G. DESHORS, R. FABBRO, A.M. de FRUTOS, D. BERMEJO et J.M. ORZA J. Phys. IV France, 01 C7 (1991) C7-183-C7-186 DOI: 10.1051/jp4:1991748