Fricke, Daniel und Doll, Georg und Bauer, Simon und Reifegerste, Karsten (2024) Manufacturing of a thermoplastic door surround structure. In: ITHEC 2024. ITHEC 2024, 2024-10-09 - 2024-10-10, Bremen, Deutschland.
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Kurzfassung
Thermoforming of thermoplastic composite structures can produce high quality parts with extensive throughput. However, high performance thermoplastic matrices often suffer from large warping due to the increased temperature required by the process and the crystallisation of the matrix. Complex geometries can also cause folds and ripples in the fibres which reduce performance. Those imperfections have to be countered by changes to the preform holder and by cuts in the preform. A detailed simulation process chain respecting crystallisation and thermal shrinkage during the cooldown is necessary to compensate spring-in. The simulation process chain has tobe supported and validated by experiments. Folds in the laminate can be examined by detailed forming simulationsif sufficient material and process data can be provided. At the German Aerospace Center in Stuttgart the process chain was applied to a generic segment of a door surround structure. Using a detailed material model for carbon fibre reinforced low-melt polyaryletherketon (CF/LM-PAEK), the warping during the cooldown was simulated and used to modify the tooling. A forming simulation afterwards showed thickness changes due to shearing and folding of the preform. Different strategies were tested to minimise these effects. The whole process chain was verified with multiple manufactured parts using the modified process.
elib-URL des Eintrags: | https://elib.dlr.de/207452/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Poster) | ||||||||||||||||||||
Titel: | Manufacturing of a thermoplastic door surround structure | ||||||||||||||||||||
Autoren: |
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Datum: | 10 Oktober 2024 | ||||||||||||||||||||
Erschienen in: | ITHEC 2024 | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | thermoplastic composites, thermoforming, process simulation | ||||||||||||||||||||
Veranstaltungstitel: | ITHEC 2024 | ||||||||||||||||||||
Veranstaltungsort: | Bremen, Deutschland | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsbeginn: | 9 Oktober 2024 | ||||||||||||||||||||
Veranstaltungsende: | 10 Oktober 2024 | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||
HGF - Programmthema: | Komponenten und Systeme | ||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | L CS - Komponenten und Systeme | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Produktionstechnologien | ||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Bauweisen und Strukturtechnologie > Bauteilgestaltung und Fertigungstechnologien | ||||||||||||||||||||
Hinterlegt von: | Fricke, Daniel | ||||||||||||||||||||
Hinterlegt am: | 23 Okt 2024 16:58 | ||||||||||||||||||||
Letzte Änderung: | 23 Okt 2024 16:58 |
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