Fiber Laser Induced Texturing Geometric Effects on 316L Stainless Steel: Surface Morphology and Roughness Assessment


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Fidan S., Ürgün S., Özsoy M. İ., Bora M. Ö.

3rd International Conference on Scientific and Innovative Studies, Konya, Türkiye, 11 - 12 Eylül 2024, cilt.1, ss.446-458

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Konya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.446-458
  • Kocaeli Üniversitesi Adresli: Evet

Özet

The present study was based on how surface morphology and roughness are affected by the
fiber laser-induced spiral texturing of 316L stainless steel, adopting geometries with circles and spline
circular geometries, using 30 W, 40 W, and 50 W as laser powers, respectively, while varying its scan
speed at 250 mm/s and 500 mm/s. The results, analyzed by 3D optical profilometry, indicated that higher
laser power and lower scan speeds result in deeper and rougher surface textures. The maximum depth
recorded was 13.6 µm at 50 W and 250 mm/s for the circular geometries and 12.4 µm for the spline
circular geometries at 40 W and 250 mm/s. Spline circular geometries gave even more complicated and
irrational surface patterns. The roughest surface of Ra = 1049 µm was recorded at 50 W-500 mm/s. These
results point out that the laser parameters might have a great impact on surface characteristics; hence,
higher laser power and spline geometries have been inferred to be used in functional surface modification
of biomedical applications and other industries.