In this work, a multi-material selective laser melting (SLM) prototype system is demonstrated with the capability of mixing two metallic powders at different compositions on demand. The flexible system can operate for in-situ alloying of different elements as well as producing composite materials. In this preliminary work, Fe/Al-12Si component manufacturing is demonstrated. Initially, pure Fe and Al-12Si powders are studied separately. At a second phase the 55/45 volumetric ratio of Fe/Al-12Si mixture is processed. Finally, deposition of parts composed of Fe, Fe/Al-12Si, and Al-12Si layers is carried out demonstrating the feasibility of the powder-bed fusion based additive manufacturing method for multi-material manufacturing.

Multi-material selective laser melting of Fe/Al-12Si components

Demir, Ali Gökhan;Previtali, Barbara
2017-01-01

Abstract

In this work, a multi-material selective laser melting (SLM) prototype system is demonstrated with the capability of mixing two metallic powders at different compositions on demand. The flexible system can operate for in-situ alloying of different elements as well as producing composite materials. In this preliminary work, Fe/Al-12Si component manufacturing is demonstrated. Initially, pure Fe and Al-12Si powders are studied separately. At a second phase the 55/45 volumetric ratio of Fe/Al-12Si mixture is processed. Finally, deposition of parts composed of Fe, Fe/Al-12Si, and Al-12Si layers is carried out demonstrating the feasibility of the powder-bed fusion based additive manufacturing method for multi-material manufacturing.
2017
Additive manufacturing; Composite materials; Multiple material additive manufacturing; Selective laser melting; Mechanics of Materials; Industrial and Manufacturing Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1043968
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