Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2000.11a
- /
- Pages.827-830
- /
- 2000
- /
- 2005-8446(pISSN)
Machining Characteristics of ED-Drilling
ED-Drilling의 방전가공 특성
Abstract
This paper describes the machining characteristics of the sintered carbide and die steel by electric discharge drilling with various tubular electrodes. Electrical discharge machining(EDM) removes material from the workpiece by a series of electrical sparks that cause localized temperatures high enough to melt or vaporise the metal in the vicinity of the charge. In the experiment, four types of electrode which have different diameter are used with the application of continuous direct current and axial electrode feed. The controlled factors include the dimension of the electrode. In drilling by EDM, the dielectric flushed down the interior of the rotating tube electrode, in order to facilitate the removal of machining debris from the hole.