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. 10, 1976
Filed:
Feb. 28, 1974
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
219 / ; 719 / ; 719 / ;
Abstract
A process and apparatus for the electrical discharge shaping of a workpiece to a shape corresponding to an electrode shape by sequentially applying an intermittent pulse voltage across the working gap between the workpiece and the electrode and wherein a pulse current having a special slant line waveform, e.g. a triangular waveform, which is different from a rectangular waveform is passed across the working gap from the initiation of discharge so as to minimize the electrode consumption ratio.