Martin Lilletvedt Rasmussen, Simen Gjethammer Grønvik, Henrik H. Øvrebø, B. Hicks, Chris Snider, Martin Steinert, Christer W. Elverum, S. Eikevåg
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Exploring high-stiffness pellets as filaments in fused filament fabrication
In Fused Filament Fabrication, there is increasing interest in the potential of composite filaments for producing complex and load-bearing components. Carbon fibre-filled polyamide currently has highest available strength and stiffness, but promising variants are not in filament form. This paper investigates filament production of commercially available, high-filled PA-CF pellets by modifying a tabletop filament extruder. We show filament production is possible by improving cooling. The FFF printed specimens show an average UTS of 135.5 MPa, higher than most commercially available filaments.
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