Electrical discharge machining method and electrical discharge machining device
AssigneeMitsubishi Hitachi Power Systems, Ltd.
InventorsTakuro HASHIMOTO, Koichi AKAGI, Naoya FUJITA, Takanobu OGATA
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Abstract
An electrical discharge machining method includes a step of selectively immersing only a portion of a workpiece in an electrical discharge machining liquid such that a machining object portion included in the portion of the workpiece is opposed to an electrode immersed in the electrical discharge machining liquid and a step of applying an electrical discharge machining to the machining object portion by applying a voltage between the electrode and the workpiece in a state where the portion of the workpiece is selectively immersed in the electrical discharge machining liquid, the portion including the machining object portion.
Claims13
An electrical discharge machining method, comprises:
- a step of selectively immersing only a portion of a workpiece in an electrical discharge machining liquid such that a machining object portion included in the portion of the workpiece is opposed to an electrode immersed in the electrical discharge machining liquid;
- and
- a step of applying an electrical discharge machining to the machining object portion by applying a voltage between the electrode and the workpiece in a state where the portion of the workpiece is selectively immersed in the electrical discharge machining liquid, the portion including the machining object portion,
- wherein, in the step of applying the electrical discharge machining to the machining object portion, the electrical discharge machining is performed on a blade tip surface as the machining object portion of a blade as the workpiece,
- wherein the electrical discharge machining method further comprises a step of fitting a root portion of the blade into a blade groove of a blade holder and attaching the blade to a feed unit of an electrical discharge machine via the blade holder, and
- wherein, in the step of immersing in the electrical discharge machining liquid, the blade moves to the electrode by the feed unit.
(canceled)
(canceled)
An electrical discharge machining device for a blade, comprising:
- a feed unit;
- a blade holder attached to the feed unit and having a blade groove into which a root portion of the blade is fittable;
- an electrode immersed in an electrical discharge machining liquid;
- and
- a power source for applying a voltage between the blade and the electrode.
Dependencies are inferred from the claim text.