Abstract
The increase in accessibility of fused filament fabrication (FFF) machines has inspired the scientific community to work towards the understanding of the structural performance of components fabricated with this technology. Numerous attempts to characterize and to estimate the mechanical properties of structures fabricated with FFF have been reported in the literature. Experimental characterization of printed components has been reported extensively. However, few attempts have been made to predict properties of printed structures with computational models, and a lot less work with analytical approximations. As a result, a thorough review of reported experimental characterization and predictive models is presented with the aim of summarizing applicability and limitations of those approaches. Finally, recommendations on practices for characterizing printed materials are given and areas that deserve further research are proposed.
Highlights
Among all the additive manufacturing (AM) technologies available, the most popular isFused Deposition Modeling (FDM), referred to as Fused Filament Fabrication (FFF)
The material is extruded through the nozzle in the form of a semi-cylindrical filament which is deposited on the platform
It has been observed that structural parameters such as filament separation, filament rasters and printing orientation have a greater influence on the mechanical properties of fused filament fabrication (FFF) components than manufacturing parameters such as extruder temperature, build platform temperature and printing speed [31,32]
Summary
Among all the additive manufacturing (AM) technologies available, the most popular is. The material is extruded through the nozzle in the form of a semi-cylindrical filament which is deposited on the platform It has been observed that structural parameters such as filament separation, filament rasters and printing orientation have a greater influence on the mechanical properties of FFF components than manufacturing parameters such as extruder temperature, build platform temperature and printing speed [31,32]. This highlights the importance of understanding the structure–property relation in parts fabricated using this AM-technology. (a) the the cross-sectional cross-sectional area of extruded filaments in a two layers array; and (b) stacking of several layers
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