The V2+ Nozzle Extension Demo: A milestone on the route to sandwich nozzle production.
- Paper number
IAC-06-C4.3.08
- Author
Dr. Peter Emvin, Volvo Aero Corporation, Sweden
- Coauthor
Mr. Thomas Tomas Damgaard, Volvo Aero Corporation, Sweden
- Coauthor
Mr. Michael Hallberg, Volvo Aero Corporation, Sweden
- Coauthor
Mrs. Lise Brox, Volvo Aero Corporation, Sweden
- Year
2006
- Abstract
Volvo Aero has through the past decade developed the sandwich technology for space nozzle applications. This laser welded channel wall technology (sandwich) is the outcome of a project with the objective to develop a cooled wall structure that meets commercial requirements1,2,3,4. The technology defined encompasses short lead times and low production cost achieved by using standard processes and commercial raw material. A milestone in the route to industrial production5 is to demonstrate a nozzle concept and product manufacturing technology in a full scale rig environment. This will further increase the current TRL (~6) position of the sandwich technology. During 2004 a trade study was initiated in Europe by CNES to evaluate different nozzle technologies, here called Vulcain 2+ NE. This study was performed by Volvo Aero together with EADS-ST and Snecma. One key area that was thoroughly analyzed was the manufacturing processes needed in this future nozzle extension. The final concept down selection for the nozzle extension was done at a decision point in September 2005. One of the core processes in this down selection is the Volvo Aero laser welded channel wall technology, which will be applied to build the nozzle cooling channels. In addition the external reinforcements will be fabricated using laser metal deposition, a new technology with great potential for a number of applications. It was also decided to go ahead and design and manufacture a full scale Vulcain 2+ NE demonstrator to be tested on a Vulcain 2 engine late 2007. The design and manufacturing of the Vulcain 2+ NE demonstrator is ongoing at full speed at Volvo Aero. This paper will present the route of our sandwich technology to production including the scope and status of this demonstrator program. References 1 A. Boman, J. Häggander, ”Laser Welded Channel Wall Nozzle Design, Manufacturing and Hot Gas testing”, AIAA 99-2750 2 M. Hallberg and T. Stenholm, “Laser Welded Sandwich Manufacturing Technology for Nozzle Extensions”, AIAA-01-3255 3 L. Winterfeldt, E. Stenström, “Functional Aspects of Laser Welded Sandwich Walls for Rocket Engine Nozzles”, AIAA-01-3695 4 R. Rydén and U. Högman,“ The Volvo Aero Laser Welded Sandwich Nozzle”, AIAA 2004-3677 5 R. Rydén, M. Hallberg, Thomas Aaboe Jensen, Niels Krebs, “Industrialisation of the Volvo Aero Laser Welded Sandwich Nozzle”, AIAA 2005-4305
- Abstract document
- Manuscript document
IAC-06-C4.3.08.pdf (🔒 authorized access only).
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