About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
Presentation Title |
Direct Energy Deposition of Tungsten by High Repetition High Power Femtosecond Laser |
Author(s) |
Anming Hu |
On-Site Speaker (Planned) |
Anming Hu |
Abstract Scope |
In this study, we compared the laser direct deposition of tungsten using two kinds of lasers: femtosecond pulsed laser and fiber continue wave laser. It is evident that fs laser deposition can significantly reduce the average energy input to 30% of CW laser. This energy efficiency improvement is attributed to decreasing thermal dissipation in the area surrounding the melting pool. This reduction of input energy can effectively suppress the thermal stress and microcracks during solidification. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, High-Temperature Materials, Solidification |