|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques II
||Blown Powder Additive Manufacturing Process Replicator for High Speed Optical, Infra-red and Synchrotron X-ray Imaging
||Sebastian Marussi, Yunhui Chen, Samuel Clark, Robert Atwood, Veijo Honkimaki, Alexander Rack, Ben Saunders, Martyn Jones, Peter D. Lee
|On-Site Speaker (Planned)
With increasing demand for additive manufactured (AM) complex shaped critical components, a better understanding of the underlying phenomena is required. To achieve this, we developed a second generation blown powder directed energy deposition additive manufacturing process replicator (BAMPR-II) to simulate industrial direct energy deposition (DED) process in a synchrotron beamline. We determined the design based on the build process and experimental constrains, evaluating the trade-offs required. The key design criteria included the capacity to be integrated on a range of beamlines, to enable high-speed X-ray radiography and diffraction to capture melt pool dynamics and microstructural feature evolution. We also incorporated a correlative high-speed infra-red and optical imaging, enabling the synchrotron imaging to be used for calibrating surface-based process responses. We conclude that in situ process replication of DED provides a means to help transform our understanding of AM processing and develop new strategies to improve product quality.
||Additive Manufacturing, Characterization, Solidification