| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Computer Vision for Powder Mass Flow Rate Measurement in Blown Powder Directed Energy Deposition |
| Author(s) |
Callan Herberger, Alan Burl, Erik LaNeave, Janely Villela, Juan Villela, Lauren Heinrich, James Haley, Thomas Feldhausen, Chris Saldana, Eric MacDonald |
| On-Site Speaker (Planned) |
Erik LaNeave |
| Abstract Scope |
Laser Powder Directed Energy Deposition can deliver metallic powder to a structure coincident with the focused beam of a laser to deposit metal with 3D control. Monitoring the mass flow rates of these powders is crucial to ensure quality and yield. Moreover, although less explored, the ability to combine two or more powders in the delivery system can enable in situ alloying with compositional changes throughout a structure. The present work explores an unobtrusive method to measure mass flow rate of a single type of metal powder through a delivery system to the deposition head. With high-speed imaging through a transparent tube inserted in the delivery system prior to reaching the deposition head, computer vision can verify the mass flow rates to avoid over or under building of the intended geometry. Furthermore, the potential exists to distinguish different metal powders to ensure correct metallurgical composition just prior to deposition. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |