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:
Dec. 23, 2003
Filed:
Aug. 20, 2001
Hidetaka Katougi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an electric discharge machining apparatus for performing machining while relatively rocking an electrode ( ) and a workpiece (W) in a plane vertical to a machining feed direction, there is provided an electric discharge state detection device ( ) for detecting an electric discharge state by detecting a short-circuit frequency between the electrode and the workpiece, a defective electric discharge frequency and a position of the electrode, and a rocking function setting device ( ) for setting parameters about a rocking function according to the electric discharge state detected by the electric discharge state detection device ( ). A parameter setting about a rocking function according to the detected electric discharge state is automatically made without compelling an operator to make the parameter setting about the rocking function, and improvement in machining efficiency and stabilization of the machining can be achieved.