| Titre : |
Mastermind in the fiber placement head : Additive manufacture of carbon-fiber-reinforced components using UV radiation |
| Type de document : |
texte imprimé |
| Auteurs : |
Hofmann, Reni, Auteur ; Pfitzer, Hanno, Auteur ; Jarlath McHugh, Auteur ; Joachim Starke, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 60-65 |
| Langues : |
Anglais (eng) |
| Catégories : |
Automobiles -- Matériaux
Automobiles -- Pièces
Composites à fibres de carbone
Impression tridimensionnelle
Lampes à rayonnement ultraviolet
Placement automatisé de fibres
Polymérisation
Stratifiés
Structures multicouches
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The manufacture of carbon-fiber-reinforced plastic components for automotive serial production must be fast and cost-competitive. The ideal solution would be a one-stage process. In a potential study, a selective fiber placement unit was tested that combines fiber placement, resin injection, and curing in a single process step – with placement rates of up to 1 m/s. |
| Note de contenu : |
- Production concept with selective fiber placement unit
- Generic approach
- Characteristic results of the potential phase
- Lamp technique
- Selection of a suitable material system
- Process and production parameters
- FIGURES : 1. Comparaison between the CFRP manufacturing processes of resin transfer molding (RTM)and selective fiber placement: from the roving directly to the component - 2. Test chain from the static process over the dynamic process to the pilot-scale additive manufacture - 3. Comparison between the wave-lengths emitted by mercury vapor and UV-LED lamps - 4. Material requirements and selection system to meet the necessary process criteria - 5. Static test installation for the production of single laminate layers using UV curing - 6. Graphic representation of the different pure resin and laminate for placement speeds of 1m/s, 0.31m/s and 0.06m/s. The middle graph shows the degree of conversion as a function of exposure time and glass transition temperature. The target states for the placed laminated layers and final CFRP laminate are indicated in yellow - 7. Light micrographs of a UV-cured individual laminated layer, a multi-layer laminate (b-stage/b-stage) and a multi-layer laminate (b-stage/full cure). The sample were produced without a press |
| En ligne : |
https://drive.google.com/file/d/1QZPURWkyTT7syIgyzh68PemFfflx4Rvs/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29123 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 9 (09/2017) . - p. 60-65
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