Infusion characteristics of preforms manufactured by automated dry fibre placement
| Autor: | Laura Veldenz, Simon Astwood, Peter Giddings, Byung Chul Kim, Kevin Potter |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Zdroj: | Veldenz, L, Astwood, S, Giddings, P, Kim, B C & Potter, K 2017, ' Infusion characteristics of preforms manufactured by automated dry fibre placement ' SAMPE Europe 2017, Stuttgart, Germany, 14/11/17-16/11/17, . University of Bristol-PURE |
| Popis: | Deposition of dry fibre (DF) material using automated fibre placement (AFP) and high temperature resin impregnation has emerged as a promising alternative to the use of prepreg for manufacturing high value composite structures, especially for large parts. In this process, the AFP machine deposits a course of multiple dry fibre tapes containing epoxy based binder (5-10 wt. %). The binder is thermally activated to adhere the incoming tapes to the substrate. This work is limited to high temperature vacuum-assisted resin infusion as an out-of-autoclave manufacturing route. Within the aim to enhance industrial implementation of this process, understanding of the interaction between automated dry fibre placement and vacuum-assisted resin infusion requires improvement. In this work, the in-plane permeability variation due to varying spacing and frequency of gaps in preforms deposited by AFP was characterised. In addition, the impact of different infusion set-ups resulting in changes in the balance of through-thickness and in-plane resin permeation, on flow front progression was investigated experimentally. The findings inform material specific manufacturing guidelines for AFP manufacture of an aerospace component. |
| Databáze: | OpenAIRE |
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