Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Geometrical and dimensional tolerances of a part produced by Additive manufacturing as a function of printing speeds and number of parts per cycle
Submission Author:
Lucas Resende Gomes , MG
Co-Authors:
Lucas Resende Gomes, Alexandre Zuquete Guarato, José Guilherme de Freitas Peres
Presenter: Lucas Resende Gomes
doi://10.26678/ABCM.COBEM2021.COB2021-0339
Abstract
Fused Deposition Modeling (FDM) is one of the various methods of Additive Manufacturing (AM). This method contains many manufacturing variables that affect the quality of the produced part such as nozzle temperature, printing bed temperature, and printing speed. This paper aims to investigate the impact of the printing speed and the number of specimens per cycle on the dimensional and geometrical tolerances of specimens produced by FDM. The specimen is designed with CAD software and manufactured with ABS filament using a GTMax3D CORE A3V2 3D printer. The printing speed velocities are 120 mm/s, 96 mm/s, and 72 mm/s, and the 3D printing process is carried out in groups of 1 or 2 specimens per cycle. A CMM (Contura G3 RDS/XXT) is used for measuring different dimensional and geometrical features of the specimen. Results indicate that lower printing speeds generate better geometrical results and medium-printing speeds with two specimens per cycle produce more accurate dimensional tolerances.
Keywords
Additive manufacturing, dimensional tolerances, Geometric Tolerances, 3D printing
