| http://www.w3.org/ns/prov#value | - In FIG. 13, 1 is an electrode of such a simple shape as a tube, cylinder, angular rod, 2 is a workpiece, 8 is a machining power source which applies machining current pulse between poles, 30 is a relative movement control means for synthesizing a feed of the electrode 1 in the Z-axis direction, for correcting a longitudinal wear amount of the electrode, with a feed thereof in the X-Y plane.
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