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. 23, 2005
Filed:
Mar. 16, 2004
Applicants:
Marco Boccadoro, Versio, CH;
Reto Knaak, Ascona, CH;
Stefano Bonini, Brissago, CH;
Inventors:
Assignee:
Agie SA, Losone, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H001/02 ; B23H007/16 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus for electrical discharge machining of a workpiece wherein an erosion pulse is applied on the tool electrode. During the time of the erosion pulse the voltage (U) set on the electrode is acquired, and the erosion pulse is interrupted, after an asymptotic behavior of the acquired voltage (U) or a value derived therefrom has been acquired. Before the interruption of the erosion pulse an increase of current may occur.