Authors:
B. Alves (1), D. Gatões (1), P. Soares (1), L. Rodrigues (2), M.T. Vieira (1)
1- Centro de Engenharia Mecânica, Materiais e Processos (CEMMPRE), University of Coimbra, Portugal
2- SOCEM INPACT, Portugal
Abstract:
Indirect additive manufacturing techniques like Material Extrusion (MEX) are rising in industrial application due to the freedom of design usually attributed to additive processing, as well as accessibility and a real contribution to sustainability. This study highlights the role of µ-tomography as a core of non-destructive techniques to optimize shaping and sintering parameters. Moreover, brings forth the possibility of continuous improvement and quality control without disposable specimens. Therefore, this study aims to optimize the manufacture of metallic specimens (AISI 316L), for similar feedstock (binder/additive), by using µ-tomography to analyse the filament, the strand, and the 3Dobject (green and sintered). Optimization the different MEX steps relies on setting key process variables and understanding their impact on defects using µ-tomography. This methodology allows the evaluation of 3Dobjects quality by non-destructive techniques.
DOI:
https://doi.org/10.59499/EP235765455