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Investigating cavity pressure behavior in high-pressure RTM process variants

 
: Rosenberg, P.; Chaudhari, R.; Karcher, M.; Henning, F.; Elsner, P.

:

Altstädt, V. ; American Institute of Physics -AIP-, New York:
29th International Conference of the Polymer Processing Society, PPS 2013. Proceedings : 15–19 July 2013, Nuremberg, Germany
New York, N.Y.: AIP Press, 2014 (AIP Conference Proceedings 1593)
ISBN: 978-0-7354-1227-9
pp.463-466
Polymer Processing Society (PPS International Conference) <29, 2013, Nuremberg>
English
Conference Paper
Fraunhofer ICT ()

Abstract
The paper addresses new variants of the high pressure resin transfer molding (HP-RTM) process namely high pressure injection RTM (HP-IRTM) and high pressure compression RTM (HP-CRTM) for manufacturing of carbon fiber reinforced composites with high fiber volume content. Both these processes utilize high-pressure RTM equipment for precise dosing and mixing of highly reactive epoxy resin and amine hardener with relatively high throughput rates. The paper addresses results of a study which investigated cavity pressure measurement for both the HP-RTM process variants using a specially designed highpressure RTM mold. The investigations indicate that the cavity pressure built up is a characteristic of the selected process variant. Further the relationship between the applied press force and the cavity pressure in HP-CRTM process was studied.

: http://publica.fraunhofer.de/documents/N-301356.html