[ Best Paper of This Month ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 1, pp.1-6

ISSN: 2508-5107 (Online)

Print publication date 15 Feb 2018

Received 13 Nov 2017 Revised 10 Jan 2018 Accepted 15 Jan 2018

DOI: https://doi.org/10.7735/ksmte.2018.27.1.1

전극마모율을 이용한 공구 전극의 미세방전가공

문인용^a ; 정도관^b ; 김보현^a^{, *}

Fabrication of Micro Tool Electrode by Micro EDM using Wear Ratio

In Yong Moon^a ; Do Kwan Chung^b ; Bo Hyun Kim^a^{, *}

aDepartment of Mechanical Engineering, Soongsil University, 369, Sangdo-ro, Dongjak-gu, Seoul 06978, Korea
bSchool of Robot and Automation Engineering, Dongyang Mirae University, 445, Gyoungin-ro, Guro-gu, Seoul 08221, Korea

Correspondence to: ^*Tel.: +82-2-820-0653, Fax: +82-2-820-0668, E-mail address: bhkim@ssu.ac.kr (Bo Hyun Kim).

Abstract

Moving block electrode discharge grinding (MBEDG) is one of the electrical discharge machining (EDM) processes that have been used to fabricate micro tool electrodes. Usually, wire electrode discharge grinding is preferred among the tool fabrication methods; however, it is not easy to control wire tension precisely and prevent wire vibration. Because MBEDG uses block electrodes instead of wires, it is possible to fabricate very straight micro tool electrodes. However, the block electrode assumes a taper shape after the tool-making process and the block surface is not reusable. In this study, we investigated the tool wear ratio between the block and tool materials. Based on the wear ratio, we proposed a tool fabrication process to prevent tapering of the block electrode.

Keywords:

Micro tool electrode, Wire EDM, Block EDM, Taper shape

Acknowledgments

본 연구는 2015년 동양미래대학교 교내학술연구과제의 지원을 받아 수행되었습니다.

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