Manufacturing parameters characterisation of a 3D printer
Tutor / director / evaluatorTravieso Rodriguez, Jose Antonio
Document typeBachelor thesis
Rights accessOpen Access
The present project is based on the need of a deeper knowledge on the possibilities that the Fused Filament Fabrication (FFF) technique can offer, this is probably one of the most prominent manufacturing techniques inside the Additive Manufacturing field (AM). 3D printing has entered strong inside the user market in the recent years for the opportunity it gives day to day and casual users to manufacture their own parts and work on their own projects. But this technology has been around for some years now inside the mechanical industry as a source to create more customizable and unique parts. Additive manufacturing has started to settle and stablish itself as a method to create final and usable parts for final products but has yet to exploit all of its potential in this field due to the fact that it is still not know all of the upsides and downsides that the technique can provide. This comes from the fact that there is an incredible amount of parameters that can affect the mechanical properties and the final appearance of the parts. This being said, this project focuses on the study of the effect that the following parameters have on the mechanical properties of the manufactured pieces while submitted to a traction force in order to know the behaviour that the final part: -Nozzle diameter -Layer height -Fill density -Speed -Orientation In order to do this an experiment design (DOE) based on Taguchi’s statistical method was carried out. This allowed to study each factor individually as well as the relation the three most important factors (Nozzle diameter, Layer height and Fill density) have with one another. After all the results were obtained we used a variance analysis to corroborate which of the manufacturing parameters had more influence in each of the mechanical properties studied. The mechanical properties studied in this project are the following: - Young Module -0.2% Offset Yield Strength -Ultimate Tensile Strength -Maximum Elongation -Resilience Module -Tenacity Module The material used to create all the test’s specimens was Acrylonitrile butadiene styrene (ABS).