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 |
Interfacial Interaction of a Bi-Material Copper-D2 Tooling Steel Structure Manufactured Using a Blue Laser Hybrid Direct Energy Deposition Process
|
Author(s) |
Ana Janeth Verdugo, Carmen Rocha, Eric MacDonald, David Roberson, Christopher Bradley, Thomas Feldhausen, Pedro Cortes |
On-Site Speaker (Planned) |
Ana Janeth Verdugo |
Abstract Scope |
Copper-alloys (Cu-Alloy) are widely used in high-performance applications due to their thermal and electrical properties. However, the printing process of copper on a traditional red-laser is a challenging task given its high reflectivity. A solution to this issue is to use blue laser since copper has a higher absorption rate in short wavelengths. This study aims to characterize the interfacial properties of a CuAlloy-D2 tooling steel interface manufactured by a blue-laser hybrid DED technology. A SEM characterization study was performed and showed defined transition between metals with a wave pattern probably associated with the melt pool forming interface. Microscopy and EDS analysis displayed a high degree of contact at the interface. CT-Scan, thermal conductivity, EBSD, and hardness testing were also carried out on the bi-metal part to fully support the fundamental characterization of the printed structure to evaluate the effects of using a blue laser source in multi-material systems. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |