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Toward improvement of the properties of parts manufactured by FFF ( Fused Filament Fabrication) through understanding the influence of temperature and rheological behaviour on the coalescence phenomenon

Bakrani Balani, Shahriar and Chabert, France and Nassiet, Valérie and Cantarel, Arthur and Garnier, Christian Toward improvement of the properties of parts manufactured by FFF ( Fused Filament Fabrication) through understanding the influence of temperature and rheological behaviour on the coalescence phenomenon. (2017) In: ESAFORM 2017, 26 April 2017 - 28 April 2017 (Dublin, Ireland).

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Official URL: https://doi.org/10.1063/1.5008034

Abstract

In this paper, the printing temperature ranges of PLA and PEEK, two semi-crystalline thermoplastics, have been investigated for the Fused Filament Fabrication (FFF) process. The printing range, comprised between the melting temperature and the degradation of each polymer, is 160°C to 190°C for PLA and 350°C to 390°C for PEEK. The complex viscosity has been measured for both polymers within the printing range. The kinetics of coalescence has been registered by measuring the bonding length between two filaments of the same polymer according to the temperature. At 167°C, the filaments of PLA reached the maximum value of bonding length. For PEEK, the filaments reached the maximum value of bonding length at 380°C. For the both materials, the final height of the filament is 80% of the initial diameter. The comparison of the obtained results with experimental study and predictive model shows a good agreement when the polymer is totally in fusion state.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to AIP Publishing. This paper appears in : AIP Conference Proceedings, Vol. 1896, Issue 1. ISBN: 978-0-7354-1580-5. The definitive version is available at : http://aip.scitation.org/doi/abs/10.1063/1.5008034
HAL Id:hal-01715601
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
Funders:
Université Fédérale de Toulouse - Région Occitanie
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Deposited By: France CHABERT
Deposited On:20 Feb 2018 15:41

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