Title :
Study of keyhole geometry for full penetration Nd-Yag CW laser welding
Author :
Fabbro, R. ; Coste, F. ; Slimani, S. ; Briand, F.
Author_Institution :
CNRS, Arcueil
Abstract :
The understanding of keyhole behavior is always a topic of great importance where many questions are still of concern. We have analyzed the keyhole dynamics in the case of a very simple configuration where we have used full penetration laser welding conditions. We will present the results of the study of these welding configurations, where experimentally a 4 kW Nd:YAG laser has been used, characterized with a 0.4 mm spot diameter and a "top-hat" intensity distribution
Keywords :
laser beam welding; neodymium; solid lasers; 0.4 mm; 4 kW; Nd-YAG CW laser welding; YAG:Nd; YAl5O12:Nd; keyhole dynamics; keyhole geometry; laser welding penetration; top-hat intensity distribution; Apertures; Geometrical optics; Laser beams; Laser modes; Optical reflection; Power lasers; Power measurement; Reflectivity; Time measurement; Welding;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Conference_Location :
Munich
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568435
