Akademik Veri Yönetim Sistemi
2nd International Conference on Trends in Advanced Research (ICTAR), Konya, Türkiye, 22 - 23 Kasım 2024, ss.445-458
In this study, the effects of fiber laser parameters on the surface roughness, line morphology, and topography of curved 6061-T6 aluminum alloy surfaces were systematically investigated. Using a factorial experimental design, laser speed, power, and frequency were varied across nine experimental conditions to optimize line characteristics. Roughness and morphology of the surface were measured by a non-contact laser profilometer and optical microscope, respectively. From the obtained results great possibilities to control surface roughness and morphology, line width, and hence, were determined through increased laser power 50-100 W and decreased scanning speeds in the range of 5-15 mm/s. For example, the maximum line width obtained evolved to be 128.34 μm under 100 W of power at 10 mm/s and a frequency of 50 kHz. Lines of nearly 50 μm width were generated at faster scan speeds and when lower power was consumed. The high-power, low-speed conditions Sa and Sz featured rough surfaces, with values recorded at 98 μm and 842 μm, correspondingly. The contribution of laser power to variance in the ANOVA performed was the highest at 82.56%. These results obtained some vital information that would be used in the optimization of laser parameters for precision texturing in the curved aluminum surfaces whose applications are normally used when enhanced surface properties are required in aircraft and car industries.