Importance du choix des optiques de transport de mise en forme de faisceaux dans l'usinage laser mettant en jeu des lasers de forte puissance (P >=10 KW)

摘要

CO2 laser manufacturing more and more call CO2 high power lasers, and we observe an important increase of industrial installations using laser with power higher than 10 KW, up to 50 KW. The performances of such installations mainly depend on the quality of transport and shaping optics which have to conserve these performances with time, in very bad optic and thermic working conditions. From the acquired experience with the 45 KW CO2 laser installation of Institut de Soudure - YUTZ (France), SESO here introduces the determinant factors of the optics choices.