| 摘要 |
A method for rotating a machining portion of an electrodischarge machine, in which a tool electrode holder mounted to a clamp holder to hold a tool electrode is rotated by virtue of a reaction force induced by the jet of a machining fluid to thereby rotate the tool electrode with respect to a workpiece. More specifically, the machining fluid is allowed to flow in the interior of the tool electrode holder and is conducted toward the outer peripheral surface of the tool electrode holder, then is further conducted in an inclined direction relative to the radial direction from the outer peripheral surface of the tool electrode holder and is jetted. Thus, the tool electrode holder is rotated by the force of reaction based on the jet of the machining fluid.
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