About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Enhancement and Synergy with Traditional Methods
|
| Presentation Title |
Characterization of Additively Manufactured AF9628 Steel Parts Produced Via Metal Fused Filament Fabrication |
| Author(s) |
Quinn Johnson, Aaron Bauer, Tanjore V. Jayaraman |
| On-Site Speaker (Planned) |
Tanjore V. Jayaraman |
| Abstract Scope |
We present the development of a metal fused filament fabrication additive manufacturing process to create a cost-effective fabrication of AF9628 (steel)-based complex ordnance components, with an optimized filament formulation, 87.4 wt.% AF9628 powder in a suitable thermoplastic binder, used for fabricating the green parts (GP). Post-processing steps―debinding and sintering―were refined to minimize thermal deformation and porosity. The phases and microstructure of the green, brown, and sintered parts were characterized. Preliminary results demonstrated a ~6% reduction in macro-porosity from brown to sintered parts, achieving a sintered part density of ~77%. The results were compared with corresponding results from traditional methods. These findings highlight the potential scalability and low-cost alternative. The ongoing work focuses on optimizing density, microstructure, and mechanical properties to fully realize the performance potential of AF9628-based components fabricated via metal-fused filament fabrication. |