Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Application of the Monte Carlo method for defining dimensional tolerances in additive manufacturing
Submission Author:
Robert Eduardo Cooper Ordoñez , SP
Co-Authors:
Gabriel Disselli, Lucas de Campos Bastos Carolo, Robert Eduardo Cooper Ordoñez
Presenter: Lucas de Campos Bastos Carolo
doi://10.26678/ABCM.COBEM2021.COB2021-2192
Abstract
Additive manufacturing is rapidly evolving into a reliable and sustainable manufacturing process, which greatly expands its uses for more than prototyping purposes. However, AM processes lacks the deeper knowledge of traditional manufacturing processes obtained over centuries of experimental and practical use. This makes it necessary to expand the knowledge on such technologies to enable them for industrial scale applications. Dimensional and geometric control methods make processes feasible by increasing standardization while reducing post-production costs. This study proposes a method that relies on Monte Carlo simulations to perform dimensional analysis based on processing windows factors in additive manufacturing. An experimental procedure was carried to analyze the combined effects of two process parameters (layer height and exposure time) in dimensional accuracy of a stereolithography AM process. The experimental data was used to create a statistical model that was able to observe, through randomized sampling, the dimensional behavior of samples within different process windows and thus providing statistical data for dimensional and tolerancing analysis.
Keywords
Additive manufacturing, Stereolithography, Monte Carlo method, Metrology, Dimensional Accuracy
