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 |
A-27: Identifying the Formation of Laser Powder Bed Fusion Defects In-situ by Coupling High Speed X-ray and Infra-red Imaging |
Author(s) |
Benjamin Gould, Sarah Wolff, Niranjan Parab, Cang Zhao, Aaron Greco, Tao Sun |
On-Site Speaker (Planned) |
Benjamin Gould |
Abstract Scope |
Laser powder bed fusion has become increasingly popular over the past decade. However, the reproducibility of parts manufactured by this technique is still a problem, overcoming which requires the understanding of the keyhole and melt pool dynamics during the process. In this work, we synchronize the high-speed X-ray imaging with high-speed infra-red imaging to study the laser powder bed fusion processes in real time. Using this technique, we demonstrate the simultaneous observation of many dynamic physical phenomena that affect the quality of the additively manufactured parts. Additionally, the formation of observable print defects in the X-ray images were correlated to distinct features observable via high speed Infra-red imaging of the surface of the print. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |