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Open AccessFeature PaperArticle

Experimental Investigation on Rotating Electrochemical Etching of a Micro Spiral Cylindrical Electrode

1
Medical Device Department, Shandong Drug and Food Vocational College, Weihai 264210, China
2
Associated Engineering Research Center of Mechanics and Mechatronic Equipment, Shandong University, Weihai 264209, China
*
Author to whom correspondence should be addressed.
Micromachines 2019, 10(10), 704; https://doi.org/10.3390/mi10100704
Received: 25 September 2019 / Revised: 9 October 2019 / Accepted: 14 October 2019 / Published: 16 October 2019
(This article belongs to the Section D:Materials and Processing)
To realize the electrochemical etching of a micro spiral cylindrical electrode, a new method of rotating electrochemical etching is proposed, and its process is further studied. First, according to the electrochemical etching principle, the machining mechanism of rotating electrochemical etching of a micro spiral cylindrical electrode is introduced. Second, based on the spiral vortex theory in the Taylor-Couette system, the effect of the high-speed rotating cylindrical microelectrode on its external flow field is analyzed. Third, the effects of rotation direction, rotation speed, machining voltage, and machining time on the thread structure are analyzed by experiments. Finally, a spiral cylindrical microelectrode with good surface thread shape is fabricated within two minutes by using the optimized machining parameters. It is proved that the rotating electrochemical etching method is an easy way to fabricate a micro spiral cylindrical electrode with high efficiency and low cost. View Full-Text
Keywords: rotating electrochemical etching; spiral vortex flow; electropolishing; spiral electrode; thread structure rotating electrochemical etching; spiral vortex flow; electropolishing; spiral electrode; thread structure
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MDPI and ACS Style

Xiong, Q.; Wang, H.; Wang, X.; Deng, S.; Liu, Y.; Lv, Z. Experimental Investigation on Rotating Electrochemical Etching of a Micro Spiral Cylindrical Electrode. Micromachines 2019, 10, 704.

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