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Lightweight Design worldwide

, Volume 10, Issue 4, pp 34–39 | Cite as

Automated welding of thermoplastic joining element on CFRP

  • Thomas Meer
  • Matthias Geistbeck
Production Joining Techniques
  • 250 Downloads

Adhesive bonded joining elements need a high manufacturing effort. Robot based welding onto aerospace CFRP with epoxy based matrix can facilitate a reliable and efficient joining. One prerequisite here is the modification of the CFRP surface with a thermoplastic functional layer.

In aircrafts today a multitude of joining elements are mounted. The program of semifinished products includes cage nuts, stud bolts and cable supports. They are used both for applications with low requirements, like the attachment of heat insulation, and for the fixation of complex component assembly to the aircraft structure. The manual adhesive bonding process of the supports is connected with a high manufacturing effort. Several specific work steps are required,shown in Figure 1and the curing time of 8 to 12 h constitutes a significant productivity limiting factor. With the aim to come to a more efficient fastener installation that also shows potential for structural applications the possibility of a...

Notes

Thanks

The research and development project “MAIplast” has been funded by the German Federal Ministry for Education and Research (BMBF) (funding code 03MAI01F) and was overseen by project executing agency Jülich (PTJ).

References

  1. [1]
    Meer, T.: Schweißen von Verbindungselementen auf duroplastischem CFK. In: Carbon Composites Magazin, 2/2015, p. 50Google Scholar
  2. [2]
    Metzner, C.; Gessler, A.; Kaufmann, J.; Kroll, L.: Functionalized braids as potential solution for high performance CFRP structures. 2nd International MERGE Technologies Conference: IMTC 2015 Lightweight Structures, conference proceedings, October 1st-2nd 2015, pp. 37-44Google Scholar
  3. [3]
    Bastien, L. J.; Gillespie, J. W. Jr.: A non-isothermal healing model for strength and toughness of fusion bonded joints of amorphous thermoplastics. In: Polymer Engineering and Science, Volume 31, Issue 24, December 1991, pp. 1720–1730CrossRefGoogle Scholar
  4. [4]
    Bucknall, C.; Gilbert, A.: Toughening tetrafunctional epoxy resins using polyetherimide. In: Polymer, Vol. 30, February 1989, pp. 213–217CrossRefGoogle Scholar
  5. [5]
    Hodgkin, J. H.; Simon, G. P.; Varley, R. J.: Thermoplastic toughening of epoxy resins — a critical review. In: Polymers for Advanced Technologies. Volume 9, Issue 1, January 1998, pp. 3–10CrossRefGoogle Scholar
  6. [6]
    www.fischer-st.de/unternehmen/mediathek/

Copyright information

© Springer Fachmedien Wiesbaden 2017

Authors and Affiliations

  • Thomas Meer
    • 1
  • Matthias Geistbeck
    • 1
  1. 1.Airbus Group InnovationsTaufkirchen close to MunichGermany

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