Hourmand, M. and Sarhan, A. A. D. and Noordin, M. Y. (2017) Development of new fabrication and measurement techniques of micro-electrodes with high aspect ratio for micro EDM using typical EDM machine. Measurement: Journal of the International Measurement Confederation, 97 . pp. 64-78. ISSN 0263-2241
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Abstract
Micro-electrodes are used for micro holes EDM drilling in miniaturized products. This study represents novel fabricating and measuring processes of high aspect ratio micro-electrodes based on horizontal moving block electrical discharge grinding (horizontal moving BEDG [HM-BEDG]) and gage block with a typical EDM machine, as well as solving the problems that occur during micro-electrode fabrication. The EDM machine has been used as a coordinate measuring machine (CMM) for measuring micro-electrode diameter, where the gage block acts as a probe and the micro-electrode as a workpiece. As a result, a micro-electrode with the highest aspect ratio (over 60.25) was fabricated successfully with 78.19 μm diameter and 4.70 mm length after producing a through micro hole with 134.5 μm diameter on WC[sbnd]Co. As these processes are simple and do not require high investment for special equipment, micro-electrodes can be fabricated and measured for micro EDM drilling and milling in conventional workshops equipped with EDM machines.
Item Type: | Article |
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Uncontrolled Keywords: | Measurement, Micro drilling |
Subjects: | T Technology > TJ Mechanical engineering and machinery |
Divisions: | Mechanical Engineering |
ID Code: | 76948 |
Deposited By: | Fazli Masari |
Deposited On: | 30 Apr 2018 14:27 |
Last Modified: | 30 Apr 2018 14:27 |
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