Authors:
György Attila Harakály (1), Santiago Cano Cano (1), Johannes Bosters (1), Christian Gierl-Mayer (2), Gerald Mitteramskogler (1)
1- Incus GmbH, Austria
2- Institute of Chemical Technologies and Analytics, Research Unit of Chemical Technologies, TU Wien, Austria
Abstract:
The Lithography-based metal additive manufacturing (LMM) is a sinter-based additive manufacturing (AM) technology to produce metallic components using a photocurable polymeric resin, filled with metal powder. The LMM printer uses this feedstock to fabricate parts by selective polymerization with a digital light processing engine layer by layer. No support structures are needed, as the feedstock resolidifies between layers and the parts are supported with unpolymerized material. Thanks to its high feature resolution and surface quality, common to Vat Photopolymerization AM, the LMM process enables part qualities unmatched with other metal AM methods for applications such as jewellery, electronics and microprinting. Here, the material properties of 316L stainless steel parts were analysed, with focus on the microstructure and mechanical properties. The results show that with an optimized debinding and sintering process, the LMM process enables the manufacturing of parts with properties above the Metal Injection Molding requirements.
DOI:
https://doi.org/10.59499/EP235765340