About this Abstract |
Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
Symposium
|
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
Presentation Title |
Printing Cryomilled Copper Chips by Blue Laser Directed Energy Deposition (DED) |
Author(s) |
Mu'ayyad Al-Shrida, Jakob Hamilton |
On-Site Speaker (Planned) |
Mu'ayyad Al-Shrida |
Abstract Scope |
The advancement of additive manufacturing (AM) has been increasing the demand for specialized powder feedstock produced by energy- and resource-intensive atomization processes. Copper shows immense potential as a recycled feedstock for AM owing to its high cost and excellent workability. However, inherent characteristics of copper powder such as the high reflectivity and high thermal conductivity make it difficult to print via infrared laser AM techniques. To address these shortcomings, this study proceeded with two key directions. First, copper chips were recycled into flowable powder through solid-state cryogenic milling, using 2k factorial design to unveil the effects of milling parameters on the powder characteristics such as size distribution and flowability. Next, an assessment of the feasibility of printing custom copper feedstock was performed using blue laser directed energy deposition (DED). The printed trials showed positive outcomes for producing pure copper structures with recycled feedstock sources in DED |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |