| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering II
|
| Presentation Title |
Investigation on the Laser Surface Treatment of Steel and Aluminum with a Single Mode Pulsed Fiber Laser Source |
| Author(s) |
Quentin Perry Auger, Jean-Michaël Deschênes, Alex Fraser |
| On-Site Speaker (Planned) |
Alex Fraser |
| Abstract Scope |
The effects of modifying the microstructure of a surface on its macroscopic properties have been studied intensively in the last decade, a well-known example being the generation of superhydrophobic surfaces with laser beams. For such kind of surface treatment, where the surface roughness (Ra value) is typically either increased or decreased, pulsed fiber lasers are an excellent tool. By focusing energy into a small spot on the surface, local intensity greater than the ablation threshold of the material can be reached and a portion of it is removed from the surface. Controlling the size and spacing of each of these holes or trenches allows to precisely modify the roughness. For this study, we used a single mode pulsed fiber laser combined with a high-speed galvanometer scanner. Several parameters of the process were optimized in order to determine the induced roughness rate achievable at full power on steel and aluminum. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |