About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Insights into the Droplets' Behaviour to Control the Quality Of 3D Parts: MetalJet |
Author(s) |
Negar Gilani, Nesma T. Aboulkhair , Marco Simonelli, Ian A. Ashcroft , Richard J. M. Hague |
On-Site Speaker (Planned) |
Negar Gilani |
Abstract Scope |
Metal jetting is a promising Additive Manufacturing technology that has the potential to fabricate intricate single and multi-metal components at a resolution not achievable with the more common AM techniques. Due to the droplet-by-droplet nature of the fabrication, insight into the individual droplets' behaviour, which defines the consistency and quality of printed parts, is of fundamental importance and yet not fully understood. Here, we present an integrated computational and experimental approach to investigate this research question. Our study shows that the droplets' morphologies result from a complex interplay between the droplets impact hydrodynamics and solidification dynamics. Furthermore, we explore how the substrate temperature influences the droplets' morphology, microstructure, inter-droplet, and droplet-to-substrate bonding. Based on these findings, a solution is proposed and successfully tested to eradicate the previously-reported lack of consolidation between medium temperature (600°C–1000°C) droplets. Our results represent a step forward in the direct printing of functional multi-metal components. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |