Influence of printing parameters on PLA layer adhesion in FFF printed parts
da Silva Grazielly Stefany Santos (1), de Oliveira Milena Gonçalves (1), dos Santos Demetrio Jackson (2), Vidotti Suel Eric (2), Chinellato Anne Cristine (2)*
(1) Undergraduate education in Materials Engineering, Federal University of ABC - UFABC - Santo André - Brazil, (2) CECS - Federal University of ABC - UFABC - Santo André - Brazil
This work aimed to study the effects of some 3D printing parameters on the properties of poly (lactic acid) (PLA) pieces, printed by fused filament fabrication (FFF). The polymeric matrix (PLA) used as 3D printing filament was characterized by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), flow index measurement (MFI) and capillary rheometry techniques prior to printing. The printing parameters studied were temperature, printing speed and number of custom parts printed at the same time. The adhesion effects between the layers were evaluated through tensile tests using an Arcan device.