| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Designing Complex Microstructures through Additive Manufacturing
|
| Presentation Title |
Molten Metal Jetting of Al-6061 via Jet-on-Demand Pneumatic Printing |
| Author(s) |
Eric S. Elton, Kellen Traxel, Andrew Pascall, Jason Jeffries |
| On-Site Speaker (Planned) |
Eric S. Elton |
| Abstract Scope |
Many traditional aluminum alloys, including 6000 and 7000 series alloys, are difficult to additively manufacture using laser-based techniques due to hot tearing, problems with microstructure, and other issues. To avoid these problems, much effort has been placed on developing new alloys with similar properties. Here we demonstrate droplet-based printing of Al-6061 and produce nearly fully dense parts from rod feedstock. We show that by heating the build plate to sufficiently high temperatures, hot tearing can be avoided. Furthermore, by post-processing the printed parts using the traditional Al-6061 T6 heat treatment, the part microstructure and strength becomes comparable to traditionally manufactured Al-6061. Finally, we demonstrate that the tensile parts of printed tensile bars are comparable to wrought parts. This suggests that droplet based methods are a suitable way to additively manufacture Al-6061 parts with comparable properties to traditionally manufactured parts. Prepared by LLNL under Contract DE-AC52-07NA27344. LLNL-ABS-847001. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |