About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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Additive Manufacturing: Equipment, Instrumentation and In-Situ Process Monitoring
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Presentation Title |
Design of a Glovebox for In Situ Monitoring of a Directed Energy Deposition Process |
Author(s) |
Marwan Haddad, Hui Wang, Ethan Weinberg, Ronald Sellers, Karan Kankaria, Mahsa Valizadeh, Sarah Wolff |
On-Site Speaker (Planned) |
Marwan Haddad |
Abstract Scope |
The objective of this work is to present a laser-based, metal powder blown directed energy deposition experimental setup. The operando glovebox setup is used for conducting and monitoring experiments to study certain phenomena in the process, such as powder-melt pool-laser interactions and defects formation. The main advantage of a customized open architecture design is to allow more flexible process control and monitoring. The glovebox setup includes a chamber, a purge antechamber, a fixed laser welding head with four nozzles for powder feeding, three powder feeders, an argon gas regulator, and a substrate holder with a three-axis motor system. The chamber has an opening in the back to perform X-ray imaging and X-ray diffraction on the printed sample and two glove ports in the laser safety glass in the front to handle reactive powders. Off-axis in situ monitoring is performed from the outside using an ultra-high-speed camera installed on a tripod. |