Authors:
José Luis Aguilar (1), Eduardo Tabares Lorenzo (1), Elisa M. Ruiz-Navas (1), Antonia Jimenez-Morales (1,2)
1- Powder Technology Group (GTP), Materials Science and Engineering Department, IAAB, Universidad Carlos III de Madrid, Avda. Universidad 30, 28911, Leganés, Madrid, Spain
2- CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
Abstract:
This work studies the sintering process of the 2024 aluminium alloy after 3D printing by Composite Extrusion Modelling (CEM) from sustainable pellet feedstocks, as an alternative route to process aluminium alloys. For the design of the sustainable feedstock of aluminium, powders were combined with water-soluble and low CO2 emissions polymers, PEG and CAB respectively. The powder injection moulding (PIM) technique was used as a first approach to produce good quality samples, thanks to previous studies by the research group. The sintering study was carried out by adding different percentages of traces of alloying elements in the aluminium-based feedstock to improve the sinterability of the material and designing an optimal experimental setup for this critical final stage. A microstructural characterisation of the parts with tin addition was carried out in order to obtain the optimum sintering parameters.
DOI:
https://doi.org/10.59499/EP235766295