Mitsubishi Electric Corporation

Oki Electric Cable Co., Ltd.

Hengbo Su

Takayuki Nakagawa

Yoshikazu Ukai

Yoichiro Kimoto

Yuki Hashimoto

Yuji Miura

To provide an electrode wire for electrical discharge machining including &#x3b2;-brass and &#x3b3;-brass arranged on an outer peripheral surface of a core and a method of manufacturing the electrode wire, capable of enhancing wire connection performance and cutting down manufacturing cost while trying to increase a processing speed. The electrode wire for electrical discharge machining according to this invention comprises: an external layer including &#x3b2;-brass and &#x3b3;-brass; and a core having an undulating shape formed at a boundary surface with the external layer. The &#x3b2;-brass and the &#x3b3;-brass are arranged densely and sparsely at the boundary surface of the undulating shape. The method of manufacturing an electrode wire for electrical discharge machining according to this invention comprises: a thermal processing step of executing thermal process on a base material under a predetermined thermal processing condition, the base material having a core with a zinc-coated surface; and a wire drawing step of drawing a base wire under a predetermined wire drawing condition provided with &#x3b2;-brass and &#x3b3;-brass formed at the surface of the core by the thermal process to make the &#x3b3;-brass reach the core, thereby forming a boundary surface of the core with an external layer into an undulating shape.

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Kanagawa-ken, Japan

Hengbo Su