Electrophoretic deposition characteristics of an electrical discharge machined micro-tool for micro-hole polishing in quartz

NCUIR > Engineering College > Departmant of Mechanical Engineering > journal & Dissertation > Item 987654321/50076

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Title:	Electrophoretic deposition characteristics of an electrical discharge machined micro-tool for micro-hole polishing in quartz
Authors:	Yang,CK;Hung,JC;Cheng,CP;Lin,WT;Yan,BH
Contributors:	機械工程學系
Keywords:	GLASS
Date:	2010
Issue Date:	2012-03-27 17:02:55 (UTC+8)
Publisher:	國立中央大學
Abstract:	This paper examines micro-hole polishing in quartz by a micro-tool coated with SiC particles by electrophoretic deposition (EPD). Quartz is a hard and brittle material, difficult to polish and fractures occur easily. Moreover, micro-hole machining by micro ultrasonic machining (MUSM) often fills the micro-hole wall with micro-chips and micro-cracks, which necessitate further polishing for better surface quality. In this paper, a micro-tool was developed for polishing micro-holes in quartz. The micro-tool was fabricated by wire electrical discharge grinding (WEDG) and had a diameter of 100 mu m. A layer of SiC particles was coated onto the micro-tool by EPD. To achieve better polishing results, optimal parameters for obtaining a uniform and stable layer by EPD were first explored. After EPD, the micro-tool was employed to polish micro-holes in quartz with the help of ultrasonic vibration machining (USM). Experimental results show that polishing for a duration of 30 min at a rotational speed of 2500 rpm using 0.25 mu m SiC particles at an ultrasonic amplitude of 6.3 mu m can improve the surface roughness of a micro-hole wall with R(max) being reduced from 0.48 mu m to 0.08 mu m.
Relation:	JOURNAL OF MICROMECHANICS AND MICROENGINEERING
Appears in Collections:	[Departmant of Mechanical Engineering ] journal & Dissertation

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