About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques II
|
Presentation Title |
Simultaneous 3D-location and Temperature Tracking of Hot Spatter during Laser Powder Bed Fusion Using a High-speed Spectral Plenoptic Camera |
Author(s) |
Ralf D. Fischer, Dustin Kelly, Sarah Morris, Ari Goldman, Brian Thurow, Barton Prorok |
On-Site Speaker (Planned) |
Ralf D. Fischer |
Abstract Scope |
Unlike conventional light-field cameras, plenoptic cameras can capture 3D information of a scene instantaneously with just a single sensor. In combination with a high-speed camera, this feature enables 3D-particle tracking with minimal setup and space requirements compared to traditional four camera tomographic designs. The plenoptic camera is composed of a traditional camera sensor, main lens, and a microlens array where each microlens images the aperture plane of the main lens. Locating different spectral filters at the aperture plane provides the unique ability for each microlens to capture spectral information. This work utilizes these unique features to track spatter particles ejected from the Laser-Powder Bed Fusion process to conduct particle tracking velocimetry, using plenoptic ray bundling, with simultaneous temperature measurements, using dual-wavelength pyrometry, for various processing parameters to gain more insight into the fundamentals of the L-PBF process. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Other |