Electrode wire for electric discharge machining and manufacturing method of the same
First Claim
Patent Images
1. 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.
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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.
32 Citations
25 Claims
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1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electrode wire for electric discharge machining, comprising:
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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. - View Dependent Claims (18, 19, 20, 21)
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22. A manufacturing method of an electrode wire for electric discharge machining, comprising steps of:
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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. - View Dependent Claims (23, 24, 25)
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Specification