| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Reveal Laser-matter Interaction during Laser Powder Bed Fusion Using a Physical Twin, X-ray and Optical Imaging |
| Author(s) |
Chu Lun Alex Leung, Samy Hocine, Andrew Farndell, Rubén Lambert-Garcia, Elena Ruckh, Maureen A. Fitzpatrick, Anna C. M. Getley, Sebastian Marussi, Marta Majkut, Alexander Rack, Nick Jones, Peter D Lee |
| On-Site Speaker (Planned) |
Chu Lun Alex Leung |
| Abstract Scope |
Laser powder bed fusion (LPBF) additive manufacturing is a digital manufacturing technology that makes 3D parts with complex geometry. LPBF can operate in continuous wave and modulated modes, however, the laser-matter interaction in these operation modes is complex and not well understood. To better understand the industrial LPBF process, we developed a next-generation physical twin using Renishaw’s RenAM500Q scan head coupled with X-ray and optical imaging. Here, we observe different types of vapor depression zones and defect generation mechanisms inside and above the laser-matter interaction under different laser powers, point exposure, jump delays, and beam diameter. Our preliminary results provide fundamental understanding of LPBF under industrial conditions, and hence crucial information for the development of the next-generation digital twin. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Powder Materials |