About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
Net Shape Metal Additive Manufacturing via Polymer Bound Energetics in a Non-Inert Environment |
| Author(s) |
Mrinaal A. Lorengo, Ji Ma |
| On-Site Speaker (Planned) |
Mrinaal A. Lorengo |
| Abstract Scope |
Metal additive manufacturing methods typically require some combination of inert environments, high energy heat sources, or extensive post processing to yield usable parts, and as such fail to provide portable and accessible forms of manufacturing. This research proposes a new process for metal additive manufacturing where a thermite reaction is used in situ as the heat source and its reaction products as material for the final part. A mixture of thermite components, a polymer binder, and metal filler are deposited in a layer through conventional fused filament fabrication. This green layer is then ignited, with the thermite reaction burning away the polymer binder, and sintering/melting the metal filler to create a metal and oxide layer upon which the process repeats to build up a full part. We discuss in detail the feedstock formulation needed to overcome the challenge of reaction product conglomeration, resulting in metal parts with applicable mechanical properties. |