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.

Date of Patent:
May. 25, 2021

Filed:

Jul. 25, 2017
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Dong Liu, Shanghai, CN;

Andrew Lee Trimmer, Niskayuna, NY (US);

Yuanfeng Luo, Niskayuna, NY (US);

Steven Robert Hayashi, Niskayuna, NY (US);

Assignee:

GENERAL ELECTRIC COMPANY, Schenectady, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23H 1/04 (2006.01); B23H 7/30 (2006.01); B23H 1/02 (2006.01); B23H 7/26 (2006.01); B23Q 5/28 (2006.01); B23H 5/04 (2006.01); B65H 35/00 (2006.01); B23H 7/18 (2006.01);
U.S. Cl.
CPC ...
B23H 1/04 (2013.01); B23H 1/024 (2013.01); B23H 1/026 (2013.01); B23H 7/26 (2013.01); B23H 7/30 (2013.01); B23Q 5/28 (2013.01); B65H 35/00 (2013.01); B23H 5/04 (2013.01); B23H 7/18 (2013.01); B23H 2500/00 (2013.01); G05B 2219/41029 (2013.01); G05B 2219/45221 (2013.01);
Abstract

An electrical machining method comprises machining a workpiece by an electrical machining device comprising an electrode; increasing a feedrate of the electrode at a first acceleration if a discharge current passing through the electrode and the workpiece is lower than a discharge current reference; and decreasing the feedrate of the electrode at a second acceleration if the discharge current is higher than the discharge current reference, wherein the second acceleration has an absolute value higher than that of the first acceleration.


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