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This paper describes the machinability of the sintered carbide and tool-die steel(STD-11) by electric discharge drilling with various tubular electrodes which have multi-holes. Various types of electrode which have different diameters and materials are used with the application of continuous direct current and axial electrode feed. Inner part of electrodes are inserted with smaller tubes or Y-channel or bar. In ED-Drilling, the dielectric flushed down the interior of the rotating tube electrode, in order to remove machining debris from the hole. As result of experiments, the bigger the diameter of the electrode is, the lower the material removal rate is. Machinability of copper electrode is higher than that of brass. In machining of sintered carbide, to use oil is better than distilled water as dielectric.
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ABSTRACT
1. 서론
2. 실험장치 및 방법
3. 실험결과 및 고찰
4. 결론
후기
REFERENCES
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - 김창호 / 2010 / 초경합금의 미세방전 드릴링에 관한 연구 / 한국기계가공학회지 9 (5) : 1 ~ 6
2. [학술지(정기간행물)] - B. H. Yan / 1999 / Micro-hole Machining of Carbide by EDM / J. of Material Processing Technology 87 (1-3) : 139 ~ 145
3. [학술지(정기간행물)] - K. M. Kim / 1999 / Machining Rate and Electrode Wear Characteristics in Micro-EDM of Micro-holes / J. of the Korean Society for Precision Engineering 16 (10) : 94 ~ 100
4. [학술지(정기간행물)] - Kai E / 2010 / EDM of Submicron Holes using Ultra Small-diameter Electrodes / Precision Engineering 34 (1) : 139 ~ 144
5. [학술지(정기간행물)] - M. P. Jahan / 2009 / A Study on the Quality Micro-hole Machining of Tungsten Carbide by Micro-EDM Process using Transistor and RC-type Pulse Generator / J. of Material Processing Technology 209 (4) : 1706 ~ 1716
2. [학술지(정기간행물)] - B. H. Yan / 1999 / Micro-hole Machining of Carbide by EDM / J. of Material Processing Technology 87 (1-3) : 139 ~ 145
3. [학술지(정기간행물)] - K. M. Kim / 1999 / Machining Rate and Electrode Wear Characteristics in Micro-EDM of Micro-holes / J. of the Korean Society for Precision Engineering 16 (10) : 94 ~ 100
4. [학술지(정기간행물)] - Kai E / 2010 / EDM of Submicron Holes using Ultra Small-diameter Electrodes / Precision Engineering 34 (1) : 139 ~ 144
5. [학술지(정기간행물)] - M. P. Jahan / 2009 / A Study on the Quality Micro-hole Machining of Tungsten Carbide by Micro-EDM Process using Transistor and RC-type Pulse Generator / J. of Material Processing Technology 209 (4) : 1706 ~ 1716
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UCI(KEPA) : I410-ECN-0101-2014-581-001100731