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. 05, 2025
Filed:
May. 11, 2022
Applicant:
Agie Charmilles SA, Losone, CH;
Inventor:
Marco Boccadoro, Verscio, CH;
Assignee:
Agie Charmilles SA, Losone, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 7/18 (2006.01); B23H 7/20 (2006.01);
U.S. Cl.
CPC ...
B23H 7/18 (2013.01); B23H 7/20 (2013.01);
Abstract
A method for electrical discharge machining (EDM) a workpiece by means of a train of machining pulses. During the machining time the machining pulses are applied to the working gap between workpiece and electrode. An open voltage is first applied, and it is increased to a second open voltage level if a discharge does not occur within a waiting time do, and further increased to a third open voltage level if a discharge does not occur within a second waiting time d. The discharge electrical parameters can be adjusted according to the duration of d0 and d1.