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Universal tool LASER - application examples for welding of HT fuel cells as well as heat exchangers and tank systems for H2 processing

 
: Standfuß, Jens; Dittrich, Dirk; Klotzbach, Annett; Mohlau, Phillip; Strohbach, Robert; Leyens, Christoph

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Volltext ()

Unwerth, Thomas von (Hrsg.); Drossel, Welf-Guntram (Hrsg.):
FC³ - 1st Fuel Cell Conference Chemnitz 2019. Konferenzband : Saubere Antriebe. Effizient Produziert. Wissenschaftliche Beiträge und Präsentationen der ersten Brennstoffzellenkonferenz am 26. und 27. November 2019 in Chemnitz
Chemnitz: Universitätsverlag Chemnitz, 2019
ISBN: 978-3-96100-103-3
S.75-82
Fuel Cell Conference Chemnitz (FC³) <1, 2019, Chemnitz>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWS ()
H2-Verarbeitung; laser welding; Laserschweißen; Wärmeaustauscher; Multi-Pass-Schweißen; Laser-Remote-Schweißen; H2 processing; heat exchanger; Brennstoffzelle; fuel cell

Abstract
The laser tool is predestined for automated manufacturing processes and has already proven its suit-ability in many areas. In particular, joining technologies in the field of hydrogen production, its storage and for bi-polar plates have to meet the highest requirements in terms of seam quality, reproducibility and manufacturing efficiency. By the examples
- 700 bar car H2 pressure tank with laser welded connection (welding depth 25 mm)
- Laser Remote Welding of HT Fuel Cell Stacks
- Laser-welded aluminum tube-ground heat exchanger for gas liquefaction
the article presents the possibilities of modern laser beam welding technologies. Furthermore, it gives an outlook on future challenges, especially with regard to the requirements of welding bi-polar plates for upcoming applications in the field of mobility.

: http://publica.fraunhofer.de/dokumente/N-577798.html