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)
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Presentation Title |
Design and Fabrication of a Micro-Nozzle for Aerosol Jet Printing |
Author(s) |
Md Shihab Shakur, Md Nazmus Sakib, Erik Inman, Srikanthan Ramesh |
On-Site Speaker (Planned) |
Md Shihab Shakur |
Abstract Scope |
Aerosol jet printing is a micro-scale additive manufacturing technique that involves deposition of a polydisperse stream of aerosol through a converging nozzle. Typically, the smaller droplets in the aerosol stream tend to expand along with the gas flow and deviate from the central axis as soon as they leave the nozzle, leading to a printing defect known as overspray. In this study, we explore the feasibility of using a series of converging-diverging sections integrated into the nozzle to enhance stream collimation, improve print resolution, and minimize the occurrence of overspray. We discuss the design and fabrication of such micro-nozzles and compare their performance We discuss the design and fabrication of these micro-nozzles and compare their performance with commercially available nozzles in terms of overspray (i.e., quality) and the mean width of the printed features (i.e., resolution). Our preliminary results suggest that the proposed nozzle design is capable of yielding finer lines and significantly reducing overspray across a range of gas flow parameters. Future work will focus on optimizing the nozzle geometries and conducting a detailed analysis of the effect of nozzle design features on aerosol collimation, stream trajectories, and temporal stability. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |