Laser transmission welding (LTW) of thermoplastics is increasingly gaining importance as an alternative welding process in comparison to the conventional processes (like heated tool welding, friction welding or induction welding) due to its advantages as high flexibility, low mechanical loads, weldability of complex geometries, high welding velocities and precise energy deposition. Nevertheless, process limitations as attainable weld strength and gap bridging are competing parallel with the conventional welding processes. The influence of the key process parameters and their interdependence is still not completely illustrated. Though, this is a condition for the optimisation of the weld joint. In order to enhance the quality of the weld seam, laser beam guiding strategies for contour welding are studied. These strategies are mainly based on the method of the laser beam oscillation. For this, a laser beam is guided at high frequency and short amplitude relative to the main laser weld direction (weld contour). In this study, results of weld seam quality by using different strategies of laser beam guiding during contour welding will be shown.
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2nd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication
April 3–5, 2006
Melbourne, Australia
ISBN:
978-0-912035-84-0
PROCEEDINGS PAPER
Enhancement of weld seam quality by appropriate laser beam guiding for contour welding of thermoplastics Available to Purchase
Mireia Fargas;
Mireia Fargas
Laser Zentrum Hannover e.V.
, Hollerithallee 8, 30419 Hannover, Germany
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Alexander von Busse;
Alexander von Busse
Laser Zentrum Hannover e.V.
, Hollerithallee 8, 30419 Hannover, Germany
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Jens Bunte;
Jens Bunte
Laser Zentrum Hannover e.V.
, Hollerithallee 8, 30419 Hannover, Germany
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Oliver Meier
Oliver Meier
Laser Zentrum Hannover e.V.
, Hollerithallee 8, 30419 Hannover, Germany
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Published Online:
April 01 2006
Citation
Mireia Fargas, Alexander von Busse, Jens Bunte, Oliver Meier; April 3–5, 2006. "Enhancement of weld seam quality by appropriate laser beam guiding for contour welding of thermoplastics." Proceedings of the 2nd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. PICALO 2006: 2nd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. Melbourne, Australia. (pp. pp. 48-53). ASME. https://doi.org/10.2351/1.5056974
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