| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
A-84: Drop-on-demand Metal Jetting: Direct 3D Printing of Silver |
| Author(s) |
Negar Gilani, Nesma Aboulkhair, Marco Simonelli, Mark East, Ian Ashcroft, Richard Hague |
| On-Site Speaker (Planned) |
Negar Gilani |
| Abstract Scope |
Drop-on-demand metal jetting promises new avenues in the direct fabrication of complex single- and multi-metal components at a resolution not achievable with more common AM metal techniques. Due to the droplet-by-droplet nature of the process, insights into the individual droplets’ behaviour are of fundamental importance since they define the consistency and quality of printed parts. Here, we present an integrated computational, analytical, and experimental approach to investigate the droplet’s dynamics and solidification during deposition, the microstructure evolution, and the interface formation. Our study shows that droplet morphology resulted from a complex interplay between impact hydrodynamics and solidification dynamics. Furthermore, the effects of substrate and droplet temperatures on the droplets’ morphology, microstructure, inter-droplet, and droplet-to-substrate bonding were investigated. Based on these findings, a solution was successfully employed to eradicate the previously-reported lack of consolidation between silver droplets. These results represent a step forward in the direct printing of functional multi-metal components. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Characterization, Modeling and Simulation |