IJAT Vol.13 No.2 pp. 191-198
doi: 10.20965/ijat.2019.p0191


Unidirectional Wetting Surfaces Fabricated by Ultrasonic-Assisted Cutting

Keita Shimada*,†, Takuya Hirai*, Masayoshi Mizutani*, and Tsunemoto Kuriyagawa**

*Graduate School of Engineering, Tohoku University
6-6-01 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan

Corresponding author

**Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan

July 30, 2018
January 4, 2019
March 5, 2019
ultrasonic cutting, functional surfaces, wetting, surface finishing

Surface microstructures can provide various functionalities, and wettability is a typical surface property that can be controlled by surface textures. Unidirectional wetting properties (UWPs) have been garnering attention as a useful wetting function for industrial functions. Thus, in this study, developing UWPs using surface microstructures has been tested. First, UWPs were calculated with the thermodynamic analysis of contact angle (CA). The analytical results predicted that an increased oblique angle of the microstructures, ω2, can increase the advancing CA; the receding CAs could not be calculated, and might exhibit the pinning effect. Ultrasonic-assisted cutting was subsequently employed to fabricate hierarchical microstructures for providing UWPs to a workpiece. Although many burrs have been observed on the edges of the structures, microstructures with different oblique angles, ω2=5, 10°, and 15°, were fabricated in the designed scales. Finally, the UWPs were verified by measuring the CAs and sliding angles (SAs). The anisotropy of CA hysteresis was indicated in each oblique angle structure, and the anisotropy of SAs was confirmed when ω2=10 and 15°. The retention force ratio of a droplet, r, which indicates the UWPs, was subsequently estimated with two different approaches, and both approaches led a similar value of the attrition rates of r from ω2=10 to 15°.

Cite this article as:
K. Shimada, T. Hirai, M. Mizutani, and T. Kuriyagawa, “Unidirectional Wetting Surfaces Fabricated by Ultrasonic-Assisted Cutting,” Int. J. Automation Technol., Vol.13 No.2, pp. 191-198, 2019.
Data files:
  1. [1] C. J. Evans and J. B. Bryan, “‘Structured’, ‘Textured’ or ‘Engineered’ Surfaces,” CIRP Annals-Manuf. Tech., Vol.48, Issue 2, pp. 541-556, 1999.
  2. [2] A. A. G. Bruzzone, H. L. Costa, P. M. Lonardo, and D. A. Lucca, “Advances in engineered surfaces for functional performance,” CIRP Annals-Manuf. Tech., Vol.57, pp. 750-769, 2008.
  3. [3] L. De Chiffrel, H. Kunzmann, G. N. Peggs, and D. A. Lucca, “Surfaces in Precision Engineering, Microengineering and Nanotechnology,” CIRP Annals – Manuf. Tech., Vol.52, Issue 2, pp. 561-577, 2003.
  4. [4] N. Moronuki, “Surface functions considered from microstructures,” Morikita Publishing, 2011 (in Japanese).
  5. [5] M. Shimomura, “New trend of next generation biomimetic material technology learning from biodiversity,” Sci. & Tech. Trends, Vol.110, pp. 9-28, 2010 (in Japanese).
  6. [6] T. Darmanin and F. Guittard, “Superhydrophobic and superoleophobic properties in nature,” Materials Today, Vol.18, Issue 5, pp. 273-285, 2015.
  7. [7] Y. Zheng, X. Gao, and L. Jiang, “Directional adhesion of superhydrophobic butterfly wings,” Soft Matter, Vol.3, pp. 178-182, 2007.
  8. [8] R. N. Wenzel, “Resistance of solid surfaces to wetting by water,” Ind. Eng. Chem., Vol.28, No.8, pp. 988-994, 1936.
  9. [9] A. B. D. Cassie and S. Baxter, “Wettability of porous surfaces,” Trans. Farad. Soc., Vol.40, pp. 546-551, 1944.
  10. [10] K. Chu, R. Xiao, and E. N. Wang, “Uni-directional liquid spreading on asymmetric nanostructured surfaces,” Nat. Mater., Vol.9, pp. 413-417, 2010.
  11. [11] N. A. Malvadkar, M. J. Hancock, K. Sekeroglu, W. J. Dressick, and M. C. Demirel, “An engineered anisotropic nanofilm with unidirectional wetting properties,” Nat. Mater., Vol.9, pp. 1023-1028, 2010.
  12. [12] C. W. Extrand, “Retention Forces of a Liquid Slug in a Rough Capillary Tube with Symmetric or Asymmetric Features,” Langmuir, Vol.23, pp. 1867-1871, 2007.
  13. [13] C. W. Extrand, “Origins of Wetting,” Langmuir, Vol.32, Issue 31, pp. 7697-7706, 2016.
  14. [14] W. Li and A. Amirfazli, “Microtextured superhydrophobic surfaces: A thermodynamic analysis,” Advances in Colloid and Interface Science, Vol.132, pp. 51-68, 2007.
  15. [15] W. Li and A. Amirfazli, “A thermodynamic approach for determining the contact angle hysteresis for superhydrophobic surfaces,” J. of Colloid and Interface Science, Vol.292, pp. 195-201, 2005.
  16. [16] W. Li, G. Fang, Y. Li, and G. Qiao, “Anisotropic Wetting Behavior Arising from Superhydrophobic Surfaces: Parallel Grooved Structure,” J. Phys. Chem. B, Vol.112, pp. 7234-7243, 2008.
  17. [17] J. Zhao, Z. Su, and S. Yan, “Thermodynamic analysis on an anisotropically superhydrophobicsurface with a hierarchical structure,” Applied Surface Science, Vol.357, pp. 1625-1633, 2015.
  18. [18] J. Kumabe and M. Masuko, “Study on the ultrasonic cutting (1st report),” Trans. JSME, Vol.24, Issue 138, pp. 109-114, 1958 (in Japanese).
  19. [19] E. Shamoto and N. Suzuki, “Ultrasonic vibration diamond cutting and ultrasonic elliptical vibration cutting,” Compr. Mater. Process, Vol.11, pp. 405-454, 2014.
  20. [20] S. Xu, K. Shimada, M. Mizutani, and T. Kuriyagawa, “Fabrication of hybrid micro/nano-textured surfaces using rotary ultrasonic machining with one-point diamond tool,” Int. J. Mach. Tools. Manuf., Vol.86, pp. 12-17, 2014.
  21. [21] S. Xu, C. Nishikawa, K. Shimada, M. Mizutani, and T. Kuriyagawa, “Surface Textures Fabrication on Zirconia Ceramics by 3D Ultrasonic Vibration Assisted Slant Feed Grinding,” Adv. Mater. Res., Vol.797, pp. 326-331, 2013.
  22. [22] K. Shimada, T. Hirai, M. Mizutani, and T. Kuriyagawa, “Fabrication of functional surface by ultrasonic-assisted cutting,” J. Jpn. Soc. Abras. Technol., Vol.62, No.1, pp. 39-44, 2018.

*This site is desgined based on HTML5 and CSS3 for modern browsers, e.g. Chrome, Firefox, Safari, Edge, Opera.

Last updated on Jul. 12, 2024