Fabrication of micro column array by micro EDM using eccentric tool electrodes방전 가공과 마이크로 편심 공구전극을 이용한 미세 기둥 어레이 가공
- Other Titles
- 방전 가공과 마이크로 편심 공구전극을 이용한 미세 기둥 어레이 가공
- Authors
- Lee, P.A.; Kim, S.K.; Kim, B.H.
- Issue Date
- Mar-2018
- Publisher
- Korean Society for Precision Engineeing
- Keywords
- Eccentric tool; Electrical discharge machining; Micro column; Micromachining
- Citation
- Journal of the Korean Society for Precision Engineering, v.35, no.3, pp.305 - 310
- Journal Title
- Journal of the Korean Society for Precision Engineering
- Volume
- 35
- Number
- 3
- Start Page
- 305
- End Page
- 310
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/31903
- DOI
- 10.7736/KSPE.2018.35.3.305
- ISSN
- 1225-9071
- Abstract
- The fabrication of a micro column array using micro EDM (Electrical Discharge Machining) and eccentric tools was presented. With the eccentric tools, micro columns can be easily machined only by feeding the tool vertically, as is the case in mechanical drilling. Moreover, the tool electrode rotates very fast, which is helpful to flush dielectric fluid in the EDM. In this paper, four eccentric tools were machined, and a micro column was machined in a few minutes. Finally, a hundred micro columns with 200-300 μm in a diameter were machined on a metal plate. In this study, vibration-assisted EDM was introduced to improve the machining rate in the fabrication of eccentric tools. Also, the design parameters of eccentric tools were discussed. © Copyright The Korean Society for Precision Engineering.
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