About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
|
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Droplet on Demand Printing of Al-6061 and Pure Aluminum |
Author(s) |
Eric S. Elton, Kellen D. Traxel, Viktor Sukhotskiy, Andrew J. Pascall, Jason R. Jeffries |
On-Site Speaker (Planned) |
Eric S. Elton |
Abstract Scope |
Metal droplet on demand printing is a developing 3D printing technique where droplets of liquid metal are formed by pushing the metal through a nozzle. The droplets are then collected to create a 3D printed part. This technique does not require large amounts of powder and, as such, is particularly advantageous for reactive materials. Thus far, droplet on demand printing has largely been limited to pure metals and castable alloys. Here we demonstrate droplet printing of Al-6061, a wrought aluminum alloy, and compare it to droplet printed pure aluminum. We show that the final microstructure of the part is dependent on the droplet cooling rate (as determined by the build plate temperature and liquid metal superheat) and that the microstructure varies with part height. We also show that post-print heat treatment of the part can homogenize the microstructure.
Prepared by LLNL under Contract DE-AC52-07NA27344. LLNL-ABS-833934 |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |