| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Multi-Step Mechanical Milling of Metal Swarf into Additive Manufacturing Feedstock Powder |
| Author(s) |
Andrew Neils, Mitchell Libby, Jack Lesko, Thomas Keller, David Hayrikyan |
| On-Site Speaker (Planned) |
Andrew Neils |
| Abstract Scope |
This study investigated the use of ball milling to produce metal powder feedstocks, with controlled size and sphericity, for use as an additive manufacturing feedstock powder. We tested the hypothesis that milling metal swarf using sequentially smaller milling ball diameters, through multi-stage milling, results in more spherical as-milled metal powders. The study was performed together with small payload rocket launch provider bluShift Aerospace (Brunswick, ME), who is interested in mechanical recycling of used metal rockets parts. We investigated the predictive performance of milling related analytical models, and will share the experimentally derived relationships between milling process parameters and resulting feedstock powder size and shape. Lastly, the value proposition of mechanical recycling of metal swarf into feedstock powders will be contrasted with conventional gas atomization processes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Powder Materials |