Title:
WIRE ELECTRODE FOR USE IN WIRE ELECTRICAL DISCHARGE MACHINING
Document Type and Number:
WIPO Patent Application WO/2014/025007
Kind Code:
A1
Abstract:
A wire electrode which comprises a core (10) constituted of brass and a surface layer (20) having a thickness of 5 µm or larger. The surface layer is formed by: subjecting a brass wire on which a zinc coating layer has been formed by electroplating to a heat treatment to thereby form a diffusion layer which consists only of a β phase formed by the diffusion of zinc contained in the zinc coating layer into the brass wire; and thereafter drawing the heat-treated wire to thereby reduce the diameter. The brass wire is continuously heat-treated evenly in a given constant-temperature atmosphere while causing the brass wire to run at a constant speed in a horizontal direction in a heating oven (40).
Inventors:
UEDA TOSHIYUKI (JP)
MAIE NOBUO (JP)
MAIE NOBUO (JP)
Application Number:
PCT/JP2013/071604
Publication Date:
February 13, 2014
Filing Date:
August 09, 2013
Export Citation:
Assignee:
SODICK CO LTD (JP)
International Classes:
B23H7/08
Foreign References:
| JPH05192821A | 1993-08-03 | |||
| JPH09225748A | 1997-09-02 | |||
| JPH01127228A | 1989-05-19 | |||
| JPH03138341A | 1991-06-12 | |||
| JP2002126950A | 2002-05-08 | |||
| JPH08318434A | 1996-12-03 |
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