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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Assessment of Droplet Formation Consistency in Multi-Nozzle Molten Metal Jetting
Author(s) Daniel Cormier, Isaac Chin, Denis Cormier, Zipeng Guo
On-Site Speaker (Planned) Daniel Cormier
Abstract Scope Monitoring molten metal droplet characteristics through an optoelectronic sensing system shows strong potential for real-time jetting evaluation, while challenges remain in signal-to-droplet correlation and measurement repeatability under varying jetting conditions. This work presents recent progress in an optoelectronic droplet sensing framework for monitoring molten droplet consistency without fully relying on high-speed imaging approaches. A collimated light source and silicon photodiode are used to capture transient droplet signals for evaluating droplet size, velocity, and trajectory behavior. The study also investigates methods to improve signal fidelity and data interpretation through an improved illumination scheme, a high-resolution imaging reference, and comparative analysis across different sensing modalities. The presentation will discuss the signal acquisition architecture, data processing workflow, and approaches for interpreting jetting consistency across different operating conditions. Preliminary results demonstrate the capability of the sensing approach to distinguish droplet formation characteristics and detect variations in jetting stability.
Proceedings Inclusion? Undecided

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