Share Email Print
cover

Proceedings Paper

Keyhole formation and power deposit law in Nd:YAG laser welding
Author(s): Jean-Marie Jouvard; Olivier Perret; Ph. Naudy
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The purpose of this work is to understand keyhole formation observed during pulse Nd:YAG laser welding. We determine the power deposit law during laser pulse. We present a calculation of the energy deposit law by Fresnel reflections. The aim is to calculate the ray trajectory in keyhole to deduce the local absorption. A previous study allows to observe keyhole formation using flash X-ray radiography, and determine evolution of keyhole geometry. These results are compared with a previous experimental determination of the interaction efficiency.

Paper Details

Date Published: 25 January 2001
PDF: 4 pages
Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); doi: 10.1117/12.414013
Show Author Affiliations
Jean-Marie Jouvard, IUT Le Creusot (France)
Olivier Perret, IUT Le Creusot (France) and CEA (France)
Ph. Naudy, CEA (France)


Published in SPIE Proceedings Vol. 4184:
XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Antonio Lapucci; Marco Ciofini, Editor(s)

© SPIE. Terms of Use
Back to Top