| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Particle Packing in Powder Spreading for Selective Laser Melted Additive Manufacturing Using the Discrete Element Method |
| Author(s) |
Priscilla Ng, Xuan Wang, Thomas Mackin |
| On-Site Speaker (Planned) |
Xuan Wang |
| Abstract Scope |
In this talk, a Discrete Element Method (DEM) model was created in Abaqus to simulate the spreading behavior for particles. Spreading behavior was investigated for three different build plate configurations: a flat build plate, a build plate with a small protruding feature, and a build plate with the same protruding feature split into quarters. For each configuration, the 2D packing behavior of the particles were analyzed during the powder spreading process. Different packing patterns seen in the 2D packing behavior were further analyzed to determine circular packing density, to draw parallels to unit cell packing, and to predict 3D packing behavior and packing density. Additionally, particle packing was evaluated on a 2D scale using image analysis to draw conclusions about powder spreading and interactions with obstacles on the build plate. |
| Proceedings Inclusion? |
Planned: |