PAEK composite prepreg / Stuart Green in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)  

[article]  inJEC COMPOSITES MAGAZINE > N° 131 (11-12/2019) . - p. 70-73 Titre : PAEK composite prepreg : fast and efficient part manufacturing Type de document : texte imprimé Auteurs : Stuart Green, Auteur ; Didier Padey, Auteur ; Gilles Larroque, Auteur ; Justin Merotte, Auteur ; Alexandre Hamlyn, Auteur ; Victorien Merle, Auteur ; Denis Cartier, Auteur Année de publication : 2019 Article en page(s) : p. 70-73 Langues : Anglais (eng) Catégories : Bandes composites Composites à fibres de carbone -- Propriétés mécaniques Fibres à orientation unidirectionnelle Hors autoclave (technologie) Matériaux -- Imprégnation Placement automatisé de fibres Polyaryl éther cétones Polymères semi-cristallins Procédés de fabrication Stratifiés Technique de la production Temps de cycle (production) -- Réduction Index. décimale : 668.4 Plastiques, vinyles Résumé : Coriolis composites and Victrex teamed up to use an automated fibre placement (AFP) process to unlock the potential of VICTREX AE TM 250 UDT. The results showed a significant increase in lay-up speed was possible while achieving industry-acceptable levels of porosity (<2%) for in-situ consolidation. Out-of-autoclave) OoA consolidation showed its potential to reduce the cycle time and energy consumption. Note de contenu : - Automated fibre placement (AFP) - In-situ consolidation - Crystallinity (in-situ processing) - Out-of-autoclave post-processing - Fig. 1 : VICTREX AE 250 unidirectional carbon fibre-reinforced tape - Fig. 2 : View of the Coriolis C1 laser assisted AFP head Governing physical mechanisms during laser assisted AFP (adapted from kok, 2018) - Fig. 3 : Comparison of oven consolidation cycle between VICTREX AE 250 and a conventional high-temperature polymer - Fig. 4 : Polished optical microsection through an oven-consolidated laminate made from VICTREX AE 250 composite tape laid up on a Coriolis C-Solo machine at 60 m/min. The white circle illustrates the area of polymer flow at a ply-drop. These results are in accordance with CScans performed on entire panels and showing no delamination nor volumetric porosities whatsoever - Table 1 : In-situ consolidation of VICTREX AE 250 unidirectional tape at constant speed (3 m/min) - Table 2 : In-situ consolidation of VICTREX AE 250 unidirectional tape at increasing speeds (6-20 m/min) - Table 3 : Post-consolidation of VICTREX AE 250 unidirectional tape laid-up at increasing speeds (48-60 m/min) - Table 4 : Mechanical properties comparison between oven-consolidated VICTREX AE 250 composite laminates and press-consolidated laminates against which the data have been normalised En ligne : https://drive.google.com/file/d/1Qqjq7auZVlNLCLXvSOes9xIZQE-vFnx3/view?usp=drive [...] Format de la ressource électronique : pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33883 [article]

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