About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Numerical and Experimental Advances In Piston-Actuated Molten Metal Droplet Jetting |
Author(s) |
Kareem Tawil, Irtaza Razvi, Chris Chungbin, Daniel Cormier, David Trauernicht, Zipeng Guo, Denis Cormier |
On-Site Speaker (Planned) |
Kareem Tawil |
Abstract Scope |
Additive manufacturing via drop-on-demand (DOD) Molten Metal Jetting (MMJ) has seen significant technological advancement in recent years. Successful DOD-MMJ systems have utilized magnetohydrodynamic, pneumatic, and piezoelectric actuation to produce controllable and repeatable molten metal droplets. We propose a novel direct-drive piezo actuated piston mechanism capable of high-frequency DOD jetting of high-temperature molten metals. Droplet generation as a function of the dynamic system response is analyzed through a combined experimental and numerical study. Results show that tunable molten metal droplets can be repeatably produced with small displacement and high acceleration of the piezo-piston system without the need for mechanical amplification or supplemental pneumatic pressure. The potential benefits of this technology, including high-frequency jetting and droplet property optimization, are discussed. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |