| 摘要 |
An electric discharge machine and method for carrying out electric discharge machining there within is provided, wherein after an electrode ( 21 ) and an electrode guide holder ( 25 ) are attached to an electrode holder ( 23 ), in advance, which is in turn mounted on a spindle ( 13 ), the electrode guide holder ( 25 ) is gripped by a gripper arm ( 29 ) and moved to a distal end of the electrode ( 21 ) so that the machining is carried out while the distal end of the electrode ( 21 ) is supported by an electrode guide ( 61 ). When the electrode ( 21 ) must be replaced due to the exhaustion thereof during the electric discharge machining of a fine hole, the electric discharge machine and method make it possible to assuredly carry out the replacement of the electrode in a short time.
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