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Proceedings Paper

Modeling and experimental investigations of keyhole laser welding
Author(s): Zygmunt Mucha; Krystian Mulczyk
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Paper Abstract

In the paper are presented new analytical modeling of deep penetration laser welding and its experimental verification. The model is an extension of analytical model of 1973. The model allows the derivation of penetration and width of melting zone caused by moving laser beam. As a result there was derived dependences of penetration length, width of the melting zone and aspect ratio of the zone as a function of welding speed and laser power. The theoretical results was compared with experimental data. The results allows the determination of optimal conditions for keyhole effect. Results of the modelling are expressed in non dimensional parameters therefore can be applied to any metals and alloys for design of laser welding parameters.

Paper Details

Date Published: 22 January 2013
PDF: 9 pages
Proc. SPIE 8703, Laser Technology 2012: Applications of Lasers, 87030U (22 January 2013); doi: 10.1117/12.2014945
Show Author Affiliations
Zygmunt Mucha, Kielce Univ. of Technology (Poland)
Krystian Mulczyk, Kielce Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 8703:
Laser Technology 2012: Applications of Lasers
Wiesław L Woliński; Zdzisław Jankiewicz; Ryszard S. Romaniuk, Editor(s)

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