Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Experimental Study on Dimensional Deviatons in Holes Produced by Fused Deposition Modeling
Submission Author:
Leonardo Miranda , SP
Co-Authors:
Leonardo Miranda, Mateus Ferreira, Givan Martins Junior, Lucas Robatto, Isabel Beatriz Prestes, Amanda Deus, Anderson Vicente Borille
Presenter: Leonardo Miranda
doi://10.26678/ABCM.COBEM2019.COB2019-0653
Abstract
Additive manufacturing is a set of techniques that produce components by adding successive layers of material. Due to the versatility that additive manufacturing presents compared to other manufacturing processes, it has been widely used for the production of complex geometry parts. In the fused deposition modeling (FDM) process, layers of material are deposited from a heated extruder head and fed by a filament. Several variables interfere in the quality of the product obtained by FDM. The choice of material, workpiece positioning and the deposition parameters directly interfere on the volume of material used, surface finish, dimensional deviations and mechanical strength. This experimental study focused on the identification of the influence of the deposition parameters on the geometric deviations in holes produced by FDM, using PLA as material. For the manufacturing, the influences of three factors on hole diameter and circularity were analyzed: print speed, infill percentage and shell thickness. Analyses of variance were performed and showed that there are significant correlations between all the deposition parameters and the dimensional responses, which were discussed in terms of thermal effects.
Keywords
Additive manufacturing, Dimensional deviation, fused deposition modeling
