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conferenceseries
.com
Volume 9
International Journal of Advancements in Technology
ISSN: 0976-4860
3D Printing 2018
March 19-20, 2018
March 19-20, 2018 | London, UK
2
nd
International Conference on
3D Printing Technology and Innovations
Freeform-FDM process development using natural fibre reinforced biopolymers
M Aburaia
1
, M Lackner
1
, H Grünbichler
1
, C Engelhardt Nowitzki
1
, E Markl
1
, H Lammer, H Zhang, J Wang, J Sapotka, T Janics
and
M Haiberger
1
University of Applied Sciences Technikum Wien, Austria
2
Kompetenzzentrum Holz GmbH, Austria
3
Shanghai University, P R China
4
Montanuniversität Leoben, Austria
5
HageSondermaschinenbau GmbH & Co KG, Austria
6
HARATECH GmbH, Austria
T
he authors demonstrate a freeform printing process using a robot and fibre reinforced biopolymers (PLA, PHB) because
the regular FDM (fused deposition modelling, FFF = fused filament fabrication) relies on layer-by-layer additive
manufacturing. As fibres, both conventional (glass fibre, aramid fiber, carbon fibre) and natural fibres (flax, hemp) are used.
Also, nano-scaled cellulosic nano crystals (CNC) and/or carbonized biobased nanofillers are used as reinforcement. A new 5
axis/6 axis 3D printing method for load path oriented fibre placement on freeform surfaces (FFF- based and robot arm-based)
was developed. A four-fold increase in tensile strength, compared to the non-reinforced polymer, was found for aramid in
PLA. Current challenges are melt strand cooling and melt strand chopping. Further increase in mechanical strengthening is
expected from optimization of the sizing agent. Freeform printing was demonstrated for up to 45°C of extruded strand angle,
without the need for a support structure, using air cooling and regular extrusion speed. Tensile testing according to ISO 527
reveals that the print direction has a market influence of mechanical properties in tensile testing.
Biography
Mohamed Aburaia is a PhD student at the University of Innsbruck, Austria. His PhD topic deals with the usage of industrial robot manipulators for freeform printing.
He is the Deputy Program Director of the Master program Mechatronics/Robotics at the University of Applied Sciences Technikum Wien, Austria. He is also the
Project Manager of a research facility that uses industrial robots to simulate processes and value chains that are analyzed and optimized concerning Industry 4.0
and related challenges. His research interest includes: Freeform Printing and Biopolymers.
aburaia@technikum-wien.atM Aburaia et al., Int J Adv Technol 2018, Volume 9
DOI: 10.4172/0976-4860-C1-002