Electrode wire for electric discharge machining and manufacturing method of the same
AssigneeMACT Co., Ltd.
InventorHyun-Sik Shin
Life of this patent
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Abstract
Enhanced electrode discharge machining properties of an electrode wire are achieved when the electrode wire comprises a coil, a covering layer formed on a periphery of the coil, and grains formed on the covering layer. The grains comprise a copper-zinc alloy including about 0.01 to 0.5 weight % of at least one additive element selected from the group consisting of aluminum, tin, magnesium, lanthanum, cerium, nickel, manganese, titanium, and zirconium.
Claims25
An electrode wire for electric discharge machining, comprising:
- a coil;
- a covering layer formed on a periphery of the coil;
- and
- grains formed on the covering layer,
- wherein the grains comprise a copper-zinc alloy including about 0.01 to 0.5 weight % of at least one additive element selected from the group consisting of aluminum, tin, magnesium, lanthanum, cerium, nickel, manganese, titanium, and zirconium.
An electrode wire for electric discharge machining, comprising:
- a coil;
- a covering layer formed on a periphery of the coil;
- and
- grains formed on the covering layer,
- wherein the coil comprises copper or an a phase copper-zinc alloy, the covering layer comprises an (α+β) phase copper-zinc alloy or a β phase copper-zinc alloy, and the grains comprise a (β+γ) phase copper-zinc alloy.
A manufacturing method of an electrode wire for electric discharge machining, comprising steps of:
- forming a coating layer on a periphery of a coil comprising copper or a copper-zinc alloy by dipping the coil in a galvanizing bath of molten zinc including about 0.01 to 0.5 weight % of at least one additive element selected from the group consisting of aluminum, copper, tin, magnesium, lanthanum, cerium, nickel, manganese, titanium, and zirconium;
- and
- performing heat treatment on the coil having the coating layer at about 300 to 950 □ to form an electrode wire.
Dependencies are inferred from the claim text.