Lightweight Design worldwide

, Volume 11, Issue 1, pp 42–47 | Cite as

Hot pressing of complex and near-net-shape 3-D components

  • Guido Wittwer
  • Simon Backens
  • Stefan Schmidt
  • Nikolai Glück
Production Composites

The company tfc and the Fraunhofer IGP cooperated in a joint research project on a hot-press technique for processing of prepreg materials. In this article the partners demonstrate how the production of three-dimensional FRC components benefits from the advantages of the curing technology.

New Hot-pressing Process

With respect to laminate quality and mechanical properties, prepreg technology is one of the most important processing techniques for structures made of fiber-reinforced composites (FRC). After depositing the prepregs — flat reinforcement fibers pre-impregnated with a thermoset resin — in the forming tool, the laminates can be cured in autoclaves, conventional convection ovens or hot presses [1].

The two techniques based on convection (heat transmission) of air (autoclave, oven) require long cycle times for heating and cooling of components and tools. Therefore, they are only suitable for low production numbers. Since, usually, one-sided tools are employed, high-quality...


  1. [1]
    Henning, F.; Moeller, E.: Handbuch Leichtbau — Methoden, Werkstoffe, Fertigung. München: Carl Hanser Verlag, 2011CrossRefGoogle Scholar
  2. [2]
    Lengsfeld, H.; Wolff-Fabris, F.; Krämer, J.; Lacalle, J.; Altstädt, V.: Faserverbundwerkstoffe — Prepregs und ihre Verarbeitung. München: Carl Hanser Verlag, 2015Google Scholar
  3. [3]
    Mallick, P. K.: Fiber-Reinforced Composites: Materials, Manufacturing and Design. Taylor & Francis Group, LLC, Boca Raton, 2008Google Scholar
  4. [4]
    Ehrenstein, G. W.: Faserverbund-Kunststoffe. Werkstoffe — Verarbeitung — Eigenschaften. München: Carl Hanser Verlag, 2006Google Scholar
  5. [5]
    Henne, M.; Ferstl, M.; Niedermeier, M.: Porengehalt drastisch gesenkt. Plastics.Now!. In: Swiss Engineering — Schweizerische Technische Zeitschrift STZ, June 2010Google Scholar
  6. [6]
    Schürmann, H.: Konstruieren mit Faser-Kunststoff-Verbunden. Berlin/Heidelberg: Springer-Verlag, 2007Google Scholar
  7. [7]
    Hopmann, C.; Fecher, M. L.; Linnemann, L.; Bastian, R.; Gries, T.; Greb, C.; Schnabel, A.: Vergleich der Eigenschaften von Onserts und Inserts für eine Großserienfertigung von FVK-Strukturbauteilen. In: Kunststofftechnik 9 (2013), pp. 178–206Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2018

Authors and Affiliations

  • Guido Wittwer
    • 1
  • Simon Backens
    • 2
  • Stefan Schmidt
    • 2
  • Nikolai Glück
    • 2
  1. 1.tfc tools for composite GmbHGüstrowGermany
  2. 2.Fraunhofer Research Institution for Large Structures in Production EngineeringRostockGermany

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