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Application of load adapted hybrid textiles for a thermoplastic seat pass-through

Presentation held at 4th International MERGE Technologies Conference, IMTC 2019, 18th-19th September 2019 Chemnitz University of Technology
: Schreiter, Michael; Nebel, Daniel; Körner, Enrico; Saleem, Arham; Schlegel, Manuel

presentation urn:nbn:de:0011-n-5958810 (2.0 MByte PDF)
MD5 Fingerprint: 3310ae54941b1987a62247cdd9bd0300
Created on: 15.7.2020

2019, 16 Folien
International MERGE Technologies Conference (IMTC) <4, 2019, Chemnitz>
Presentation, Electronic Publication
Fraunhofer IWU ()
hybrid textiles; load adapted composite design; media based impregnation; Thermoplastic Composites

The potential of a continuous non-crimp fabric (NCF) process with implemented offset technologies is being demonstrated by a case study of a seat pass-through. Topology optimization with the relevant load cases and the construction of a load adapted composite design is presented with a weight saving of up to 18 percent. Inverse draping identifies a two-dimensional development of the construction and prepares it for the production based on the textile technology restrictions. The down-stream process ability of such produced textiles was investigated by impregnating heavy tows with polypropylene on laboratory scale and subsequent material characterization of the resulting laminates. The impregnation and consolidation of the seat pass-through is performed by employing load path adapted semi-finished products by using novel variothermal, fluid-based pressing. This allows a better control over the dynamic impregnation and unwanted fiber washing due to the large gradient of the areal weight. The final processing in injection moulding tool of the reference component shows the applicability of the technology also in existing process chains and illustrates the potential of the consistent consideration of a load adapted composite design in the development process.