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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.:

US 11241749 B1

PDFFull Text
Date of Patent:
Feb. 08, 2022

Filed:

Oct. 17, 2017

Electrical discharge machining method and electrical discharge machining device

Applicant:

Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;

Inventors:

Takuro Hashimoto, Yokohama, JP;

Koichi Akagi, Yokohama, JP;

Naoya Fujita, Yokohama, JP;

Takanobu Ogata, Yokohama, JP;

Assignee:

MITSUBISHI POWER, LTD., Kanagawa, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Geoffrey S Evans

Int. Cl.
CPC ...
B23H 7/00 (2006.01); B23H 9/10 (2006.01); B23H 7/22 (2006.01); B23H 7/26 (2006.01); F01D 5/14 (2006.01); F01D 9/02 (2006.01); F01D 25/00 (2006.01); B23H 1/00 (2006.01); F04D 29/38 (2006.01); F02C 7/00 (2006.01);
U.S. Cl.
CPC ...
B23H 7/00 (2013.01); B23H 1/00 (2013.01); B23H 7/22 (2013.01); B23H 7/26 (2013.01); B23H 9/10 (2013.01); F01D 5/14 (2013.01); F01D 9/02 (2013.01); F01D 25/00 (2013.01); F02C 7/00 (2013.01); F04D 29/38 (2013.01); F05D 2220/3219 (2013.01); F05D 2230/12 (2013.01);
Abstract

An electrical discharge machining method includes selectively immersing only a portion of a workpiece in an electrical discharge machining liquid such that a machining object portion included in the portion of the workpiece is opposed to an electrode immersed in the electrical discharge machining liquid and applying an electrical discharge machining to the machining object portion by applying a voltage between the electrode and the workpiece in a state where the portion of the workpiece is selectively immersed in the electrical discharge machining liquid.

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