UCLouvain, Institute of Mechanics, Materials, and Civil Engineering (IMMC), Belgium
Quentin Gaillard
Biography
Quentin Gaillard is an Assistant Professor at Mines Saint-Étienne and a member of the Georges Friedel Laboratory (LGF). His research focuses on experimental metallurgy and metallic alloys produced by Laser-Powder Bed Fusion.
Conferences
Room |
Date |
Hour |
Subject |
|---|---|---|---|
| Room 7 |
26-03-2026 |
10:35 am – 10:55 am |
69 Optimizing Electromagnetic Performance of L-PBF Aluminium Waveguides through Surface Roughness Control |
Conferences Details
69 Optimizing Electromagnetic Performance of L-PBF Aluminium Waveguides through Surface Roughness Control
In this study, AlSi10Mg and Al6061-Zr rectangular waveguides, operating in the 26.5–40 GHz frequency range (Ka-band/WR28), were fabricated using various L-PBF process parameters and scanning strategies aimed at controlling the surface roughness of the inner walls, either globally or selectively. This approach allowed to assess the influence of roughness distribution on waveguide performance. The results indicate that electromagnetic losses remained relatively low across all tested configurations. This suggests that L-PBF-fabricated waveguides can achieve acceptable performance in certain high-frequency bands, even without extensive post-processing.
Keywords: L-PBF; Process parameters; Surface roughness; Aluminium alloys; Electrical properties
