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The transferability and design of commercial printer settings in PLA/PBAT fused filament fabrication
- Source :
- POLYMERS, Polymers, Volume 12, Issue 11, Polymers, Vol 12, Iss 2573, p 2573 (2020)
- Publication Year :
- 2020
-
Abstract
- In many fused filament fabrication (FFF) processes, commercial printers are used, but rarely are printer settings transferred from one commercial printer to the other to give similar final tensile part performance. Here, we report such translation going from the Felix 3.0 to Prusa i3 MK3 printer by adjusting the flow rate and overlap of strands, utilizing an in-house developed blend of polylactic acid (PLA) and poly(butylene adipate-co-terephthalate) (PBAT). We perform a sensitivity analysis for the Prusa printer, covering variations in nozzle temperature, nozzle diameter, layer thickness, and printing speed (Tnozzle, dnozzle, LT, and vprint), aiming at minimizing anisotropy and improving interlayer bonding. Higher mass, larger width, and thickness are obtained with larger dnozzle, lower vprint, higher LT, and higher Tnozzle. A higher vprint results in less tensile strain at break, but it remains at a high strain value for samples printed with dnozzle equal to 0.5 mm. vprint has no significant effect on the tensile modulus and tensile and impact strength of the samples. If LT is fixed, an increased dnozzle is beneficial for the tensile strength, ductility, and impact strength of the printed sample due to better bonding from a wider raster structure, while an increased LT leads to deterioration of mechanical properties. If the ratio dnozzle/LT is greater than 2, a good tensile performance is obtained. An improved Tnozzle leads to a sufficient flow of material, contributing to the performance of the printed device. The considerations brought forward result in a deeper understanding of the FFF process and offer guidance about parameter selection. The optimal dnozzle/vprint/LT/Tnozzle combination is 0.5 mm/120 mm s&minus<br />1/0.15 mm/230 &deg<br />C.
- Subjects :
- printer transferability
0209 industrial biotechnology
Materials science
Technology and Engineering
FDM
Polymers and Plastics
IMPACT STRENGTH
Fused filament fabrication
Young's modulus
02 engineering and technology
Prusa i3
Article
lcsh:QD241-441
chemistry.chemical_compound
symbols.namesake
020901 industrial engineering & automation
lcsh:Organic chemistry
Polylactic acid
Ultimate tensile strength
Composite material
Ductility
Izod impact strength test
General Chemistry
MECHANICAL-PROPERTIES
021001 nanoscience & nanotechnology
Volumetric flow rate
mechanical property
chemistry
printing parameter
symbols
PLA
PROPERTY
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20734360
- Database :
- OpenAIRE
- Journal :
- POLYMERS, Polymers, Volume 12, Issue 11, Polymers, Vol 12, Iss 2573, p 2573 (2020)
- Accession number :
- edsair.doi.dedup.....b9eb3eca8dd62118f51542e7d31cf7ed