Investigation of the Laser Parameters that Should Be Used to Optimize the Root Mean Square Height Value, One of the Roughness Parameters Required to Obtain a More Hydrophobic Surface

Öz

This study investigates the effects of fiber laser surface texturing on ST52 steel plates to enhance hydrophobicity by optimizing surface roughness (Sq). Three key parameters—geometric pattern type (square, diamond, hexagon, circle), laser power (40–100 W), and theoretical laser-scanned area factor (20–80%)—were examined using the Taguchi L16 orthogonal array to minimize experimental runs while ensuring statistical validity. The goal was to maximize the Root Mean Square Height (Sq) for improved hydrophobic performance. Results revealed that the hexagonal pattern, 100 W laser power, and 80% scanning area produced the highest Sq value (338.39 µm), with a corresponding signal-to-noise (S/N) ratio of 50.59. ANOVA identified the scanning area factor (39.94%) as the most influential parameter, followed by laser power (34.29%) and pattern type (25.77%). Non-linear trends were observed: Sq peaked at 60 W and 100 W but dipped at 80 W, while the 80% scanning area yielded the roughest surface, and 40% the smoothest. For hydrophobic applications, the optimal combination was circular/diamond patterns, 80% scanning area, and 60 W or 100 W laser power. Conversely, low-friction surfaces required square/hexagonal patterns, 40% scanning area, and 40 W or 80 W power. The study demonstrates the efficacy of fiber laser texturing for tailoring ST52 steel surfaces and underscores the Taguchi method’s utility in parameter optimization.

Anahtar Kelimeler

• Fiber laser texturing
• ST52 steel
• surface roughness (Sq)
• Taguchi method
• hydrophobicity
• laser power
• geometric patterning.

Daha Hidrofobik Bir Yüzey Elde Etmek İçin Gerekli Pürüzlülük Parametrelerinden Biri Olan Kök Ortalama Kare Yükseklik Değerinin Optimize Edilmesinde Kullanılması Gereken Lazer Parametrelerinin Araştırılması

Öz

Bu çalışma, yüzey pürüzlülüğünü (Sq) optimize ederek hidrofobikliği artırmak için ST52 çelik levhalar üzerinde fiber lazer yüzey dokulandırmanın etkilerini araştırmaktadır. Geometrik desen türü (kare, elmas, altıgen, daire), lazer gücü (40–100 W) ve teorik lazer tarama alanı faktörü (20–80%) olmak üzere üç temel parametre, deneysel çalışmalardan en az sayıda yararlanırken istatistiksel geçerliliği sağlamak için Taguchi L16 ortogonal dizisi kullanılarak incelenmiştir. Amaç, hidrofobik performansı iyileştirmek için Kare Ortalama Yükseklik (Sq) değerini en üst düzeye çıkarmaktı. Sonuçlar, altıgen desen, 100 W lazer gücü ve %80 tarama alanının en yüksek Sq değerini (338,39 µm) ürettiğini ve buna karşılık gelen sinyal-gürültü (S/N) oranının 50,59 olduğunu ortaya koydu. ANOVA, tarama alanı faktörünü (%39,94) en etkili parametre olarak belirledi, bunu lazer gücü (%34,29) ve desen türü (%25,77) izledi. Doğrusal olmayan eğilimler gözlemlendi: Sq, 60 W ve 100 W'da zirveye ulaşırken 80 W'da düştü, %80 tarama alanı en pürüzlü yüzeyi, %40 ise en pürüzsüz yüzeyi verdi. Hidrofobik uygulamalar için en uygun kombinasyon dairesel/elmas desenler, %80 tarama alanı ve 60 W veya 100 W lazer gücüydü. Tersine, düşük sürtünmeli yüzeyler için kare/altıgen desenler, %40 tarama alanı ve 40 W veya 80 W güç gerekliydi. Çalışma, ST52 çelik yüzeylerin uyarlanmasında fiber lazer tekstüreleme yönteminin etkinliğini göstermekte ve parametre optimizasyonunda Taguchi yönteminin yararını vurgulamaktadır.

Anahtar Kelimeler

• Fiber lazer dokulandırma
• ST52 çeliği
• yüzey pürüzlülüğü (Sq)
• Taguchi yöntemi
• hidrofobisite
• lazer gücü
• geometrik desenlendirme.

Kaynakça

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