About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
Investigation of Argon Gas Flow and Spatter Dynamics in Laser Powder Bed Fusion Using the Aconity MIDI System |
| Author(s) |
Jashanpreet Saini, Nicholas O'Brien, Satbir Singh, Jack Beuth |
| On-Site Speaker (Planned) |
Jashanpreet Saini |
| Abstract Scope |
Laser Powder Bed Fusion (L-PBF) process relies on inert gas flow—typically argon—to remove spatter particles from the build area. These spatter particles are ejected as a byproduct of the printing process and can lead to LOF defects if they land on other parts. Unfortunately, not all spatter is successfully removed by the gas flow and machine users must still account for spatter contamination during build planning.
This presentation investigates the behavior of the argon gas flow within the build chamber of the Aconity MIDI system and its influence on spatter particle dynamics. The gas flow is quantified through Computational Fluid Dynamics (CFD) simulations and experimental hot-wire anemometer measurements. Additionally, spatter capture experiments were conducted to analyze particle distribution within the chamber. In situ measurements further revealed the interaction between spatter particles and the argon flow, offering insights into gas flow effectiveness and potential pathways for improving part quality. |