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Micromachines 2018, 9(8), 402; https://doi.org/10.3390/mi9080402

Experimental Research on Machining Localization and Surface Quality in Micro Electrochemical Milling of Nickel-Based Superalloy

1
Associated Engineering Research Center of Mechanics and Mechatronic Equipment, Shandong University, Weihai 264209, China
2
Suzhou Institute of Shandong University, Room522, Building H of National University Science and Technology Park of Nanotechnology, No.388 Ruoshui Road, Suzhou Industrial Park, Suzhou 215123, China
*
Author to whom correspondence should be addressed.
Received: 3 July 2018 / Revised: 1 August 2018 / Accepted: 6 August 2018 / Published: 14 August 2018
(This article belongs to the Section Micro-/Nano-system and Technology)
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Abstract

Micro electrochemical machining is becoming increasingly important in the microfabrication of metal parts. In this paper, the machining characteristics of micro electrochemical milling with nanosecond pulse were studied. Firstly, a mathematical model for the localization control of micro electrochemical milling with nanosecond pulse was established. Secondly, groups of experiments were conducted on nickel-based superalloy and the effects of parameters such as applied voltage, pulse on time, pulse period, electrolyte concentration and electrode diameter on machining localization and surface roughness were analyzed. Finally, by using the optimized machining parameters, some 2D complex shapes and 3D square cavity structures with good shape precision and good surface quality were successfully obtained. It was proved that the micro electrochemical milling with nanosecond pulse technique is an effective machining method to fabricate metal microstructures. View Full-Text
Keywords: micro electrochemical milling; machining localization; side gap; surface roughness micro electrochemical milling; machining localization; side gap; surface roughness
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Liu, Y.; Jiang, Y.; Guo, C.; Deng, S.; Kong, H. Experimental Research on Machining Localization and Surface Quality in Micro Electrochemical Milling of Nickel-Based Superalloy. Micromachines 2018, 9, 402.

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