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Proceedings Paper

Pulsed laser welding of cylindrical profile
Author(s): Radim Ctvrtlik; Martina Havelkova
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Paper Abstract

Laser welding is a very progressive branch of the laser material processing. The most common industrial welding lasers are CO2 and Nd:YAG. Laser choice usually depends on economics, weld speed and penetration requirements, and the material. Some of the benefits of laser welding are its ability to perform precise narrow welds, good penetration, a small heat affected zone, low heat input and fast travelling times. The process also has the adavantages of minimum distortion, no secondary cleaning process or filler materials and a high degree of repeatability. The pulsed laser beam welding process is controlled by a variety of parameters. These include average power, peak power, pulse energy, pulse duration, traverse speeds, diameter, mode structure, polarization and focus position of laser beam, as well as material-dependent properties such as absorptivity and thermophysical properties. The present study focuses on the welding of cylindrical profile with Nd:YAG pulsed laser KLS 246-102 and on the effects of main processing parameters on weld quality for low carbon steel. Performed experiments of welding of the cylindrical profile are completed by simulation made by modeling program SYSWELD.

Paper Details

Date Published: 23 March 2005
PDF: 4 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611079
Show Author Affiliations
Radim Ctvrtlik, Joint Lab. of Optics, Palacky Univ. (Czech Republic)
Martina Havelkova, Joint Lab. of Optics, Palacky Univ. (Czech Republic)
Institute of Physics (Czech Republic)

Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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