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Citation link: https://doi.org/10.26092/elib/1872
LAF2022_52_Henze.pdf
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Industrial applicability of reflection-assisted laser beam brazing of ZM-coated steel sheets


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Authors: Henze, Insa 
Pordzik, Ronald  
Philip, Marben 
Mattulat, Thorsten  
Editors: Seefeld, Thomas  
Radel, Tim  
Mattulat, Thorsten  
Publisher: BIAS - Bremer Institut für angewandte Strahltechnik GmbH 
Abstract: 
A major challenge in laser beam brazing of zinc-magnesium-coated (ZM) steel sheets is the uniform pre-heating of the substrate surface for achieving a stable wetting process. A process modification of the con-ventional laser beam brazing that addresses this requirement is the reflection-assisted laser beam brazing in laser leading configuration, which utilizes the laser reflections from the brazing wire onto the substrate material for preheating and wire melting with a single laser beam. In this study the industrial applicability of this process variant is addressed by analyzing the process parameters as well as the required position tolerance limits for continuous and uniform seams.
The results showed the suitability of a laser beam brazing process in laser leading configuration for ZM-coated steel sheets. Process velocities of 6 m/min were possible. Regarding the process tolerances it has been shown that flange joints with a gap width of up to 100 µm and lateral displacements of the TCP of up to 400 µm were joinable. The brazing seams showed a higher tensile shear strength than the substrate ma-terial.
Keywords: Laser brazing; Zinc-magnesium-coated steel; Reflection-assisted laser brazing
Issue Date: Nov-2022
Publisher: BIAS Verlag
Project: Entwicklung eines Laserbearbeitungskopfes zum effizienten Drahtabschmelzen und Vorwärmen der Fügestelle beim Löten mit einem Laserstrahl 
Funders: Federal Ministry for Economic Affairs and Energy (BMWi), German Federation of Industrial Re-search Associations (AiF), Central Innovations of Medium-Sized
Grant number: ZF 4587002FH9
Journal/Edited collection: LAF 2022: Proceedings of the 12th Laser Applications Forum 
Start page: 52
End page: 57
Type: Artikel/Aufsatz
Secondary publication: no
DOI: 10.26092/elib/1872
URN: urn:nbn:de:gbv:46-elib63103
Institution: Universität Bremen 
Faculty: Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04) 
Institute: BIAS - Bremer Institut für angewandte Strahltechnik GmbH 
Appears in Collections:Forschungsdokumente

  

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