| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Characterization and Validation Experiments for a Binder Jet 3D Printing Modeling Framework |
| Author(s) |
Wesley Combs, Joshua Wagner, C.Fred Higgs III |
| On-Site Speaker (Planned) |
Wesley Combs |
| Abstract Scope |
Binder jet 3D printing (BJ3DP) is an additive manufacturing (AM) process that is based on the selective joining of powder particles by precision jetting of liquid binder droplets. Recently, we’ve developed a computational framework that resolves the coupled fluid-particle interaction that occurs between the binder and powder during jetting. Supplementary experiments are required for this numerical model to (1) calibrate the powder material properties such that the behavior of the modeled particles represents the physical powder in question, and (2) to validate the overall simulation results with direct experimental comparisons. For the former, we present a methodology for calibrating the cohesion behavior of metal AM powder using angle of repose experiments. For the latter, we introduce a dedicated experimental apparatus that isolates the fundamental physics of binder-powder interactions in BJ3DP. This apparatus employs high-speed, microscopic imaging for real time observation of the binder deposition event. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |