Modeling and experimental investigations of keyhole laser welding

Zygmunt Mucha; Krystian Mulczyk

doi:10.1117/12.2014945

22 January 2013 Modeling and experimental investigations of keyhole laser welding

Zygmunt Mucha, Krystian Mulczyk

Proceedings Volume 8703, Laser Technology 2012: Applications of Lasers; 87030U (2013) https://doi.org/10.1117/12.2014945
Event: Tenth Symposium on Laser Technology, 2012, Szczecin, Poland

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.

Citation Download Citation

Zygmunt Mucha and Krystian Mulczyk "Modeling and experimental investigations of keyhole laser welding ", Proc. SPIE 8703, Laser Technology 2012: Applications of Lasers, 87030U (22 January 2013); https://doi.org/10.1117/12.2014945

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