| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire electric discharge machining method enabling a long time stable wire electric discharge machining, a device to perform the method, and a means to prevent formation of verdigris, which may cause process trouble.SOLUTION: A wire electric discharge machining method uses water purified using an ion exchange resin (11) and further made free from any heavy metal ion, particularly a copper ion using an ion exchange resin (15), as a dielectric substance for the wire electric discharge machining. The wire electric discharge machining method enables a long time stable wire electric discharge machining, suppressing formation of verdigris.SELECTED DRAWING: Figure 2 |
