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.

Date of Patent:
Apr. 26, 1988

Filed:

Aug. 28, 1986
Applicant:
Inventors:

Dandridge S Tomalin, Chagrin Falls, OH (US);

John Capp, Willowick, OH (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23H / ; B23H / ; B05D / ;
U.S. Cl.
CPC ...
219 / ; 427118 ; 427122 ; 428618 ; 428677 ;
Abstract

An improved electrical discharge machining electrode permitting improved cutting action to be achieved at the same level of electrical power being applied to the wire electrode. Such improvement is attributable to a particular configuration and the material being employed in the wire electrode which has an iron alloy core coated with an intermediate layer including a copper and zinc heat reaction product on which is deposited an adherent carbon surface coating. The improved method and apparatus for employment of this electrode is also described along with one method to form the multilayer coating on the electrode wire core.


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