Authors:
Neyder A. Sandoval (1), Alejandro Santos Villanueva (2), Joaquin. Rams (2), Belén Torres (2), Pilar Rodrigo-Herrero (2), Sandra C. Cifuentes (2), Sophia A. Tsipas (1)
1- Materials Science and Engineering Department, IAAB, Universidad Carlos III de Madrid, Madrid, Spain
2- Área de Ciencia e Ingeniería de Materiales, ESCET, Universidad Rey Juan Carlos, Madrid, Spain
Abstract:
The improvement of beam-based additive manufacturing processes, such as selective Laser Melting (SLM) is currently generating industrial and scientific momentum because of the great advantages it offers in terms of design, flexibility, and efficiency. Although SLM is widely studied, it has certain disadvantages in part due to the limited availability of raw metal or metal-ceramic powders used, prone to processing issues like microstructural defect and low reproducibility. To partly address these challenges, in this work, powders were surface modified using a fluidised bed to improve the characteristics and processability and adapt them to the SLM using a scalable process. The modified powders were characterized by different techniques and the influence of the surface modification on their processability was analysed. In addition, the effect of printing parameters was investigated. Finally, the microstructure of parts obtained by SLM using the modified powders were studied.
DOI:
https://doi.org/10.59499/EP246282776
