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Development of a reversible machining method for fabrication of microstructures by using micro-EDM by Zilong Peng; Zhenlong Wang; Yinghuai Dong; Hui Chen is a Engineering article available to read on EtoBox.

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A new micromachining method for the fabrication of micro-metal structures by using micro-reversible electrical discharge machining (EDM) was investigated. The reversible machining combines the micro-EDM deposition process with the selective removal process, which provides the ability of depositing or removing metal material using the same micro-EDM machining system. From the discharge mechanism of micro-EDM, the process conditions of micro-EDM deposition were analyzed firstly. Using the brass and steel materials as a tool electrode, the micro-cylinders with 200 m in diameter and heightto-diameter ratio of more than 5 were deposited on a high-speed steel surface. Then the machining procedure was transformed easily from deposition to selective removal process by switching the process conditions. Different removal strategies including micro-EDM drilling and micro-EDM milling were used in the machining. Micro-holes with 80 m in diameter are drilled successfully in the radial direction of the deposited micro-steel cylinder. Also, a brass square column with 70 m in side length and 750 m in height, and a micro-cylinder with 135 m in diameter and 1445 m in height are obtained by using micr

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Author

Zilong Peng; Zhenlong Wang; Yinghuai Dong; Hui Chen

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0924-0136)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)