Authors:
José Luis Aguilar-Garcia (Carlos III University, Spain),
Elisa María Ruiz-Navas (Carlos III University, Spain)
Abstract:
This work explores Composite Extrusion Modeling (CEM) with aluminium as an alternative processing route for aluminium alloys. This process allows working with pellets to be deposited directly, layer-by-layer. For this reason, an initial study, necessary for the production of samples, has been carried out. The first challenge was the design of sustainable aluminium-based feedstock, and the production of pellets for additive manufacturing. Thanks to previous studies by the research group, the Powder Injection Moulding (PIM) technique was used as a first approach to produce good quality samples through a combination of water-soluble polymers with low CO2 emissions, PEG and CAB, respectively. For this, a microstructural characterization was carried out and the critical solid loading and rheological properties were studied, as well as the debinding conditions and sintering parameters. In the same way, the printing parameters were optimized for a proper material deposition and to obtain good quality samples.
DOI:
https://doi.org/10.59499/WP225371685