CPC H01B 1/023 (2013.01) [C22C 21/00 (2013.01); C22C 21/08 (2013.01); C22F 1/05 (2013.01); H01B 1/02 (2013.01); H01B 5/02 (2013.01); H01B 5/08 (2013.01); H01B 7/00 (2013.01); H01B 13/0006 (2013.01); H01B 13/0013 (2013.01); C22F 1/00 (2013.01); C22F 1/04 (2013.01)] | 2 Claims |
1. A method of manufacturing an aluminum alloy wire, the method comprising:
a casting step of forming a cast material by casting a melt of an aluminum alloy that contains more than or equal to 0.03 mass % and less than or equal to 1.5 mass % of Mg, more than or equal to 0.02 mass % and less than or equal to 2.0 mass % of Si, and a remainder of Al and an inevitable impurity, Mg/Si being more than or equal to 0.5 and less than or equal to 3.5 in mass ratio, wherein the aluminum alloy is molten at a temperature less than 750° C. and more than 675° C.;
an intermediate working step of performing plastic working to the cast material to form an intermediate work material;
a wire-drawing step of performing wire drawing to the intermediate work material to form a wire-drawn member; and
a heat treatment step of performing a heat treatment during the wire drawing or after the wire-drawing step,
wherein in the wire-drawing step, a wire drawing die having a surface roughness of less than or equal to 3 μm is used,
wherein in the wire-drawing step, a lubricant is used and an amount of adhesion of C to a surface of the wire-drawn member is set to more than or equal to 0.5 mass % and less than or equal to 25 mass % of the aluminum alloy by adjusting an amount of application of the lubricant, and
wherein a heat treatment condition in the heat treatment step is adjusted in order to achieve a desired value of a remaining amount of the lubricant on the surface of the wire-drawn member after the heat treatment step.
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