Laser beam brazing using the twin spot technology

Henning Hanebuth; Peter Hoffmann; Manfred Geiger

doi:10.1117/12.184728

7 September 1994 Laser beam brazing using the twin spot technology

Henning Hanebuth, Peter Hoffmann, Manfred Geiger

Proceedings Volume 2207, Laser Materials Processing: Industrial and Microelectronics Applications; (1994) https://doi.org/10.1117/12.184728
Event: Europto High Power Lasers and Laser Applications V, 1994, Vienna, Austria

Abstract

Joint arrangements at the automobile-body can show wide gaps and joints due to the tolerances in the sheet part production. If those joint arrangements lie in the later visible area or are prepared if a joint for repair work is needed, they are nowadays joined by brazing. Brazing offers, through the filler metal amount, a moulding material which can be finished more easily than comparable weld seams. Through the brazing of sheet parts, repair work can be carried out in an easier way than it would be the case with welded joints. Still, manual brazing, especially manual flame brazing, involves some problems regarding the fluctuating brazing quality and the great heat input together with the resulting thermal damage of the basic material and the filler metal. The application of the Nd: YAG-laser as a brazing tool presents itself for the following reasons: - good control as a prerequisite for a process control - strictly and locally limited heat input and the defined setup of temperature fields as a result - laser beam guiding via optical fibres as a reason for the high capability of integration into the production systems

Citation Download Citation

Henning Hanebuth, Peter Hoffmann, and Manfred Geiger "Laser beam brazing using the twin spot technology", Proc. SPIE 2207, Laser Materials Processing: Industrial and Microelectronics Applications, (7 September 1994); https://doi.org/10.1117/12.184728

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