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| Petrov, R. H. | Madrid |
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| Azam, Siraj |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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Atzler, Fynn
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document
COMBINING FUSED GRANULAR FABRICATION AND AUTOMATED FIBRE PLACEMENT FOR THE RAPID PRODUCTION OF COMPLEX SANDWICH-STRUCTURES
Abstract
Extrusion-based additive manufacturing methods like Fused Granular Fabrication (FGF) have madesignificant progress in recent years for their application in industrial processes. But these technologiesstill fall short of being usable for load bearing structures. A combination of FGF and automated fibreplacement can be used to achieve a manufacturing process for parts with the strength of continous fibrereinforced laminates and freedom of design which is offered by FGF. Additionally, 3D-printing thetooling for a PAEK laminate using FGF is a cheap alternative to traditional subtractive manufacturingmethods. Using incompatible polymers for the mould and the laminate allows to design a bond betweenthose polymers which is strong enough to hold the tapes during the AFP secure in the mould while still beingweak enough to allow a demoulding of the laminate. To adjust the bonding strength appropriately for agiven part, the influence of certain process parameters of the AFP was investigated in this study. Theseresults were than used to demonstrate the new cooperative form of manufacturing thermoplasticsandwich structures using FGF and AFP by producing a 600 mm × 800 mm sandwich structure withintegrated conduits in a short time frame.