| 摘要 |
An electrode wire for electro-discharge machining includes a core wire including a first metal including copper and having one of phasesα,α+β′, andβ′, a first alloy layer formed at a boundary region between the core wire and a second metal plated on an outer surface of the core wire due to mutual diffusion between the core wire and the second metal and having a phaseβ′, and a second alloy layer formed due to diffusion of the first metal to the second metal and having a phaseγand/a phaseε. A core wire material is erupted onto a surface of the electrode wire for electro-discharge machining, which includes the core wire, the first alloy layer, and the second alloy layer, along cracks appearing on the second alloy layer, so that a plurality of grains are formed on the surface of the electrode wire. |
