About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Agile Additive Manufacturing by Employing Breakthrough Functionalities
|
Presentation Title |
Effects of Scanning Strategies and Beam Shaping on Microstructure Variation in Laser Powder Bed Fusion |
Author(s) |
Michael Paleos, Shawn Hinnebusch, Albert To |
On-Site Speaker (Planned) |
Michael Paleos |
Abstract Scope |
Beam shaping techniques and unconventional scanning strategies are gaining attention in the context of laser powder bed fusion (LPBF) mainly due to their microstructure control and property optimization potential. This study focuses on uncovering and explaining the effects of those methods, such as the ring-shaped laser, on the grain structure of LPBF-fabricated parts. The approach is based on an integration framework for the thermal process and microstructure evolution models that can lead to accurate simulations both on small and large scales. More specifically, we employ the matrix-free FEM-based PAMSIM process simulator to capture critical thermal signatures and the ExaCA open-source software to approximate the final grain structure. This leads to critical insights into the interplay between the aforementioned techniques and several grain-related measures. Those insights facilitate the control of the microstructure and the overall optimization of the LPBF process. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, |