Akademik Veri Yönetim Sistemi
6th International Conference on Applied Engineering and Natural Sciences, Konya, Türkiye, 25 - 26 Eylül 2024, cilt.1, ss.119-129
This research work has been carried out with attention to how the LP technique can change both
the surface topography and roughness of the Ti6Al4V alloy by changing some of the most relevant
parameters: power of laser, scan speed, and overlap rate. The Ti6Al4V alloy is considered for its
exceptionally great strength-to-weight ratio besides being rated for excellent corrosion resistance and
biocompatibility. In the experiment, the variation in the laser power varied from 10 to 30 W, the scan speed
from 250 to 500 mm/s, and the overlap rate from 20% to 40% using a factorial design method to study the
effects on surface texture. The surface morphology was characterized by optical microscopy and
profilometry. With higher laser power, the surface is bound to be more irregular with higher valleys and
peaks due to the higher material ablation rate, while at bigger scan speeds, the surface tends to be smoother
due to lower energy input per unit area. The rate of overlap significantly influenced the uniformity of the
surface-the higher the rate, the more homogeneous the texture of the surface would be. It has also been
observed from the results that low laser power and high scanning speed combined to form a smooth surface,
while a high overlap rate improved uniformity. For this reason, the present results are important for the
understanding of the laser processing parameters with respect to surface topography in Ti6Al4V and as
such improves its applications in industries where stringent surface modification requirements are required.