Institut für Transport- und Automatisierungstechnik Forschung Publikationen
Significance of the resonance condition for controlling the seam position in laser-assisted TIG welding

Significance of the resonance condition for controlling the seam position in laser-assisted TIG welding

Kategorien Zeitschriften/Aufsätze (reviewed)
Jahr 2016
Autorinnen/Autoren Emde, B.; Huse, M.; Hermsdorf, J.; Kaierle, S.; Wesling, V.; Overmeyer, L.; Kozakov, R.; Uhrlandt, D.
Veröffentlicht in Physics Procedia (83), 568–576.
Beschreibung

As an energy-preserving variant of laser hybrid welding, laser-assisted arc welding uses laser powers of less than 1 kW. Recent studies have shown that the electrical conductivity of a TIG welding arc changes within the arc in case of a resonant interaction between laser radiation and argon atoms. This paper presents investigations on how to control the position of the arc root on the workpiece by means of the resonant interaction. Furthermore, the influence on the welding result is demonstrated. The welding tests were carried out on a cooled copper plate and steel samples with resonant and non-resonant laser radiation. Moreover, an analysis of the weld seam is presented.

 

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DOI 10.1016/j.phpro.2016.08.059