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

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Khaliq M.H. (Author) Other; Gomes R. (Author) Other; Fernandes C. (Author) Other; Nóbrega J. (Author) Other; Carneiro O.S. (Author) Other; Ferrás L.L. (Author) Other

Journal

Title: Rapid Prototyping Journal

Vol. 23

Pages: 727-735

ISSN: 1355-2546

Publisher: Emerald

Indexing

Scopus - 37 Citations

Other information

Authenticus ID: P-00Y-6XD

DOI: 10.1108/rpj-02-2016-0027

Abstract (EN): Purpose - This work aims to provide additional insights regarding the practicability of using conventional materials in the fused filament fabrication (FFF) process. Design/methodology/approach - Two 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). Findings - The 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/value - This work provides insightful information regarding the use of high viscosity materials on the 3D printing process.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8