Authors:
Xiaoshuang Li (Aerosint SA, Belgium),
Nicolas Gianfolcaro (Aerosint SA, Belgium),
Anne Mertens (University of Liege, Belgium)
Abstract:
Fabrication of multi-material parts in a single step is the next innovation in the field of additive manufacturing. The unique Selective Powder Deposition (SPD) system developed by Aerosint was integrated into Aconity machines, enabling manufacturing of bi-metallic parts by Laser Powder Bed Fusion (LPBF). In the present study, the focus lies on the processing of steels with high strength and Cu alloy with high thermal|electrical conductivity. Parts with different material interface configurations were fabricated by LPBF. The microstrucutre of the parts, especially the interface integrity, was charaterized using OM, SEM. A various scanning strategies were developed to reduce the defect level at the interface. Finally, the mechnical and thermal properties of the parts were evaluated, which were further improved by developing post heat treatment.
DOI:
https://doi.org/10.59499/WP225366826