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:
Aug. 31, 1999
Filed:
Sep. 02, 1997
Dandridge Sale Tomalin, Chagrin Falls, OH (US);
Composite Concepts Company, Inc., Milford, NH (US);
Abstract
A coated EDM wire electrode and a process for manufacturing a coated EDM wire electrode. The core of the electrode is composed of a first metal, for instance copper, or an alloy of a first metal, for instance brass, or a composite of a first metal, for instance copper clad steel. The core is coated with a second metal which has a heat of vaporization of less than 35 KJ/cm.sup.3, such as, for instance zinc. The coated core is then heated to form an alloy of the second metal and the first metal, for instance .gamma. phase brass. The alloy has a content by weight of the second metal greater than 50% and has a melting point equal to or greater than 550.degree. C.