The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1987
Filed:
May. 23, 1985
Applicant:
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22H / ;
U.S. Cl.
CPC ...
219 / ;
Abstract
A wire electrode for use in electro-discharge machining is formed essentially of Cu, including Zn of 5 through 38% by weight and Si of 0.1 through 0.5% by weight so as to suppress sputtering of the electrode material to the workpiece and to improve workability. The wire electrode may include Zn of 30 through 40% by weight, Si of 0.1 through 1.2% by weight and Al of 0.01 through 0.2% by weight in addition to Cu.