Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

Study on Wetting Characteristics of Laser Cladding Surfaces

레이저 클래딩 표면에 대한 젖음 특성에 관한 연구

  • Jang, Mu-Yeon (Graduate School of Mechanical Engineering, Pukyong National University) ;
  • Park, Young-Whan (Department of Mechanical Engineering, Pukyong National University) ;
  • Kim, Tae-Wan (Department of Mechanical Engineering, Pukyong National University)
  • 장무연 (부경대학교 기계공학과 대학원) ;
  • 박영환 (부경대학교 기계공학과) ;
  • 김태완 (부경대학교 기계공학과)
  • Received : 2019.10.18
  • Accepted : 2019.10.23
  • Published : 2019.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

Laser processing has been used in various fields. In this study, the feasibility of a hydrophobic surface was investigated through the laser cladding technique. A diode laser was used, and the output was set to 600-800 W. Seven different specimens were prepared with different cladding widths and spacings, and the contact angles for water droplets were evaluated. As a result, the contact angle of water droplets measured in the direction parallel to the cladding line was higher than that in the vertical direction. The wider the cladding width and the cladding space, the higher the contact angle in the parallel direction. It is thought that when a higher contact angle is formed in the parallel direction, more air can be placed in the valley between the cladding lines. In addition, for the hydrophobic coating effect, the contact angle of the coated cladding surface was increased by about $5-15^{\circ}$ as a whole compared to the coated smooth surface. It was confirmed that the wetting characteristics were improved through the cladding.

Keywords

References

  1. Kang, H. S., Hong, S. J., Choi, J. Y., Hong, S. K., Jun, T. O., "A Study of Laser Repair for Thin Film Pattern" Journal of Korean Soceity of Laser Processing, Vol. 1, No. 1, pp. 39-44, 1998.
  2. Chung, W. Y., Kim, S. H., Han, H. W., Min, J. W., Jeung, W. Y., Rhee, M. H., “Study on Friction Characteristics according to Lubrication Condition of Metal Surface by Laser Dotted Line Pattern Processing,” Journal of Korean Society of Laser Processing, Vol. 13, No. 2, pp. 1-5, 2010.
  3. Kwon, M. H., Shin H. S., Chu, C. N., "Fabrication of a Super-hydrophobic Surface on Metal using Laser Ablation and Electrodeposition," Applied Surface Science, Vol. 288, pp. 222-228, 2014 https://doi.org/10.1016/j.apsusc.2013.10.011
  4. Yan, H. P., Rashid, M. R., Khew, S. Y., Li, F. P., Hong, M.,H., "Wettability Transition of Laser Textured Brass Surfaces inside Different Mediums," Applied Surface Science, Vol. 427, pp. 369-375, 2018. https://doi.org/10.1016/j.apsusc.2017.08.218
  5. Sun, C., Zhao, X. W., Han, Y. H., Ze, Z., "Control of Water Droplet Motion by Alteration of Roughness Gradient on Silicon Wafer by Laser Surface Treatment," Thin Solid Films, Vol. 516, pp. 4059-4063, 2008. https://doi.org/10.1016/j.tsf.2008.01.011
  6. Rung, S., Schwarz, S., Zettl, J., Gotzendorfer, B., Esen, C., Hellmann, R., "Static and Dynamic Contact Angle of Water Influenced by Femtosecond Laser based Ripple Structures on Metals," Journal of Laser Micro / Nanoengineering, Vol. 12, pp. 100-104, 2018.
  7. Bizi-Bandoki, P., Benayoun, S., Valette, S., Beaugiraud, B., Audouard, E., "Modifications of Roughness and Wettability Properties of Metals Induced by Femtosecond Laser Treatment," Applied Surface Science, Vol. 257, pp. 5213-5218, 2011. https://doi.org/10.1016/j.apsusc.2010.12.089
  8. Ta, D. V., Dunn, A., Wasley, T. J,. Kay, R. W., Stringer, J., Smith, P. J., Connaughton, C., Shephard, J. D., "Nanosecond Laser Textured Superhydrophobic Metallic Surfaces and Their Chemical Sensing Applications," Applied Surface Science, Vol. 357, pp. 248-254, 2015. https://doi.org/10.1016/j.apsusc.2015.09.027
  9. Vorobyev, A. Y., Guo, C., "Multifunctional Surfaces Produced by Femtosecond Laser Pulses," Journal of Applied Physics, Vol. 117, p. 033103, 2015 https://doi.org/10.1063/1.4905616

Cited by

  1. 레이저 선택적 증착을 통한 이방특성의 소수성 표면처리 vol.19, pp.11, 2020, https://doi.org/10.14775/ksmpe.2020.19.11.109