About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Process Development
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Presentation Title |
Powder Capture Efficiency Monitoring with In-situ, 3D, Surround Digital Image Correlation in Directed Energy Deposition Additive Manufacturing |
Author(s) |
James C. Haley, Samuel Leach, Brian Jordan, Thomas Feldhausen, Ryan Dehoff, Vincent Paquit |
On-Site Speaker (Planned) |
James C. Haley |
Abstract Scope |
In powder-based Laser Directed Energy Deposition (L-DED) Additive Manufacturing (AM), powder capture efficiency strongly effects part quality and deposition stability. In order to better quantify and monitor powder capture efficiency, an in-situ, 360° array of high resolution visible cameras and long wave infrared cameras were installed in a DED machine. This camera array is capable of triangulating surface roughness features to generate 3D dimensional metrology and mapping thermographic measurements during deposition. These measurements are leveraged to dimensionally assess powder capture efficiency as a function of part temperature, and better understand the interplay between toolpath geometry and deposition performance. Capabilities and limitations are discussed as well as the extensibility of the technique to control applications. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |