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:
Feb. 19, 2002
Filed:
Dec. 29, 2000
Applicant:
Inventors:
Ingo Baumann, Sinn-Fleisbach, DE;
Bernd Barthel, Herborn-Merkenbach, DE;
Assignee:
Berkenhoff GmbH, Heuchelheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 1/00 ;
U.S. Cl.
CPC ...
B23H 1/00 ;
Abstract
A method and a wire electrode for the spark-erosive cutting of hard metal, whereby the wire electrode has a core and at least one outer coat surrounding the core and wearing during cutting. To avoid corrosion, as, for example, pitting, a wire electrode is chosen, the wearing outer coat of which consists of a metal or a metal alloy which is not nobler than the binder contained in the hard metal, and the metal or the metal alloy has an electrode potential which is less than or equal to &phgr; =−0.28 V, referred to a standard hydrogen electrode.