Patent ID: 9387548
Filing Date: 2016-07-12
CPC Classification: B23H,B28D

Claim Text:
1. A wire-cut electrical discharge machining apparatus, comprising: a pair of guide rollers disposed in parallel and spaced apart from each other; a wire that forms a parallel wire section between the pair of guide rollers by being engaged between the pair of guide rollers at a plurality of times while separated from each other at fixed intervals, to travel with rotations of the guide rollers; a pair of vibration-damping guide rollers, disposed between the pair of guide rollers, that forms a plurality of cutting wire sections damped by making driven contact with the parallel wire section; a plurality of rotatable power feed contacts that feed power to each of the plurality of cutting wire sections; and a pair of nozzles disposed between the pair of vibration-damping guide rollers, the pair of nozzles each include an escape orifice configured to discharge machining fluid away from the rotatable power feed contacts.