About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques
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Presentation Title |
On In-situ Monitoring of Geometry, Temperature, and Plume Behavior in Laser-based, Powder-blown Directed Energy Deposition Additive Manufacturing |
Author(s) |
Abdalla R. Nassar, Christopher B Stutzman, Edward W. Reutzel, Dustin M. Seltzer, Jeffrey L. Schiano, Stephen W. Brown, Wesley F. Mitchell |
On-Site Speaker (Planned) |
Abdalla R. Nassar |
Abstract Scope |
Laser-based, powder-blown directed energy deposition (DED) is among the most versatile of additive manufacturing (AM) processes. Using DED, high-value, metal components can be fabricated or repaired using a single or a combination of material systems. Unfortunately, DED processing involves complex interactions between laser energy, melt, plume, and powder. In-situ monitoring provides a pathway for both elucidating these complex interactions as well as for documenting build quality in real time. However, monitoring of key processing parameters is neither straightforward nor easy. Here, recent strategies for monitoring build geometry, temperature and plume behavior are presented and common challenges, particularly plume interference, are addressed. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |