| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Gravity-affected Sintering of 3D-printed Powder Components |
| Author(s) |
Eugene A. Olevsky, Elisa Torresani, Randall M. German |
| On-Site Speaker (Planned) |
Eugene A. Olevsky |
| Abstract Scope |
Present technologies of additive manufacturing (such as binder-jetting, stereolithography, robocasting, etc.) of complex-shape powder-components necessitate fine-tuning of sintering as applied to porous 3D-printing products. The densification of complex shapes requires control of the gravity-related phenomena to ensure a nearly full and distortion-free densification. The present study addresses these issues through the involvement of comprehensive finite element simulations, the determination of the additively manufactured powder specimens’ sintering behavior, and the experimental validation of the developed models describing sintering of 3D-printed objects. The presentation describes the application of a numerical approach based on continuum mechanics-based modeling of the gravity-induced distortions during sintering of 3D-printed powder components. The validation of the model is conducted through the comparison with the experimental results obtained for the sintering of the beam-shape components printed using ceramic stereolithography technology. A semi-analytical criterion, which can be used for sintered 3D-printed parts’ design recommendations, is derived. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Powder Materials, Additive Manufacturing |