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Development of a novel consolidation process for continuous-fiber-reinforced thermoplastics

: Baumgärtner, S.; Lohr, C.; Henning, F.

European Society for Composite Materials:
17th European Conference on Composite Materials, ECCM 2016. Proceedings : 26-30th June 2016, Munich, Germany, CD-ROM
Munich, 2016
ISBN: 978-3-00-053387-7
European Conference on Composite Materials (ECCM) <17, 2016, Munich>
Fraunhofer ICT ()

Consolidation is an essential process step in thermoplastic tape laying. In the present study it has been shown that an inert atmosphere like nitrogen or a vacuum reduces degradation of the material during this process. Based on these findings a novel consolidation approach was developed, in which a vacuum is used to apply pressure to the laminate while infrared radiation heats the thermoplastic material through a transparent mold wall. Beside radiation power, the thickness of the mold wall is a major influencing factor on the cycle time. For thin mold walls, cycle times below one minute for the whole consolidation step can be achieved.