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Micromachines 2017, 8(3), 91;

Investigation of Adhesive Resistance of Aluminum Alloy by Sandblasting and Electrochemical Machining

School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
Author to whom correspondence should be addressed.
Received: 12 January 2017 / Revised: 6 March 2017 / Accepted: 15 March 2017 / Published: 17 March 2017
(This article belongs to the Special Issue Microtribology, Adhesion and Surface Engineering)
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A novel method for fabricating an adhesive resistance surface is presented. Sandblasting and electrochemical machining were introduced to prepare micro-nano structures on the sample surface. Then, the prepared sample was immersed in a tridecafluoroctyltriethoxysilane ethanol solvent. The surface of the aluminum alloy sample roughened and covered with low-surface-energy chemical groups was examined by scanning electron microscope (SEM) and atomic force microscope (AFM). Surface wettability and adhesive resistance of the treated sample were characterized by water contact angles, area fraction, sliding angle and solid surface energy. Furthermore, the effects of some process parameters, such as sand size, current density, electrochemical machining time, and electrolyte concentration, on the contact angle, area fraction, sliding angle and the solid surface-energy of the modified sample surfaces were provided. The results show that the combination of binary micro-structures and surface modification of tridecafluoroctyltriethoxysilane plays a role to improve adhesive resistance of the aluminum alloy surface. View Full-Text
Keywords: adhesive resistance; sandblasting; electrochemical machining; aluminum alloy adhesive resistance; sandblasting; electrochemical machining; aluminum alloy

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Meng, J.; Dong, X.; Zhou, H.; Liu, W.; Yin, Z. Investigation of Adhesive Resistance of Aluminum Alloy by Sandblasting and Electrochemical Machining. Micromachines 2017, 8, 91.

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