Fabrication of Micro-Pins by Electrochemical Machining

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Abstract:

The purpose of present paper is to fabricate tungsten rods with diameter of 200 μm to micro-pin electrodes, which have small conical angle and high aspect ratio, by the use of electrochemical machining process. The influence of working parameters, such as: applied voltage, electrolyte concentration, anode depth, and drawing speed on the machining process is investigated. Experimental results show that the applied voltage and electrolyte concentrate will affect the surface precision as the machining current is small than the limiting current. The anode immersed depth combined with a suitable drawing velocity has a significant effect on the conical angle (conicity) and aspect ratio.

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Periodical:

Advanced Materials Research (Volumes 634-638)

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2839-2842

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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