Fatigue performance of ABS specimens obtained by fused filament fabrication
Domingo-Espin, Miquel (Fundació Eurecat)
Travieso-Rodriguez, J. Antonio (Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica)
Jerez-Mesa, Ramn (Universitat de Vic - Universitat Central de Catalunya. Departament d'Enginyeries)
Llumà, Jordi (Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica)

Date:	2018
Abstract:	In this paper, the fatigue response of fused filament fabrication (FFF) Acrylonitrile butadiene styrene (ABS) parts is studied. Different building parameters (layer height, nozzle diameter, infill density, and printing speed) were chosen to study their influence on the lifespan of cylindrical specimens according to a design of experiments (DOE) using the Taguchi methodology. The same DOE was applied on two different specimen sets using two different infill patterns-rectilinear and honeycomb. The results show that the infill density is the most important parameter for both of the studied patterns. The specimens manufactured with the honeycomb pattern show longer lifespans. The best parameter set associated to that infill was chosen for a second experimental phase, in which the specimens were tested under different maximum bending stresses so as to construct the Wöhler curve associated with this 3D printing configuration. The results of this study are useful to design and manufacture ABS end-use parts that are expected to work under oscillating periodic loads.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Parts design ; Additive manufacturing ; Fused filament fabrication ; Fatigue ; Taguchi ; ABS
Published in:	Materials, Vol. 11, Issue 12 (December 2018) , art. 2521, ISSN 1996-1944

DOI: 10.3390/ma11122521
PMID: 30545020

16 p, 3.1 MB

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