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On the use of high viscosity polymers in the fused filament fabrication process

On the use of high viscosity polymers in the fused filament fabrication process PurposeThis work aims to provide additional insights regarding the practicability of using conventional materials in the fused filament fabrication (FFF) process.Design/methodology/approachTwo different acrylonitryle butadiene styrene (ABS) grades are studied and compared, aiming to check to what extent the regular ABS developed for conventional polymer processing, with a different rheology than the one provided for the FFF process, can also be used in this process (FFF).FindingsThe rheological results show that a general-purpose ABS (ABS-GP) melt is much more viscous and elastic than ABS-FFF. It is clear that using ABS-GP as feedstock material in the FFF process results in poor coalescence and adhesion between the extruded filaments, which has a detrimental effect on the mechanical properties of the printed specimens. Despite its lower performance, ABS-GP can be a good choice if the objective is to produce an aesthetical prototype. If the objective is to produce a functional prototype or a final part, its mechanical performance requirements will dictate the choice.Originality/valueThis work provides insightful information regarding the use of high viscosity materials on the 3D printing process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Rapid Prototyping Journal Emerald Publishing

On the use of high viscosity polymers in the fused filament fabrication process

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
1355-2546
DOI
10.1108/RPJ-02-2016-0027
Publisher site
See Article on Publisher Site

Abstract

PurposeThis work aims to provide additional insights regarding the practicability of using conventional materials in the fused filament fabrication (FFF) process.Design/methodology/approachTwo different acrylonitryle butadiene styrene (ABS) grades are studied and compared, aiming to check to what extent the regular ABS developed for conventional polymer processing, with a different rheology than the one provided for the FFF process, can also be used in this process (FFF).FindingsThe rheological results show that a general-purpose ABS (ABS-GP) melt is much more viscous and elastic than ABS-FFF. It is clear that using ABS-GP as feedstock material in the FFF process results in poor coalescence and adhesion between the extruded filaments, which has a detrimental effect on the mechanical properties of the printed specimens. Despite its lower performance, ABS-GP can be a good choice if the objective is to produce an aesthetical prototype. If the objective is to produce a functional prototype or a final part, its mechanical performance requirements will dictate the choice.Originality/valueThis work provides insightful information regarding the use of high viscosity materials on the 3D printing process.

Journal

Rapid Prototyping JournalEmerald Publishing

Published: Jun 20, 2017

References