ELECTRICAL DISCHARGE MACHINE

摘要

An electrical discharge machine (10) feeds an electrode wire (W) received within a guide tube (70) to a process region of a machined article (13). The electrical discharge machine includes a cylindrical hollow driving shaft (40) arranged in a vertical direction, which has a space for receiving the guide tube with the electrode wire along a vertical central axis (Z). Also, a head assembly (50) includes a first holding member (54) for holding the guide tube, and a second holding member (62) for holding the electrode wire extending from a bottom opening of the guide tube. Also, the head assembly is detachably coupled with a bottom portion of the driving shaft. Therefore, the electrode wire can be replaced by replacing the head assembly.