Electrode for an electro-erosion process and an associated method thereof

Patent metadata

Field	Value
Publication number	US-11433468-B2
Application number	US-201916416448-A
Country	US
Kind code	B2
Filing date	May 20, 2019
Priority date	Sep 30, 2016
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

Electrode for an electro-erosion process, includes a shaft, a body coupled to the shaft, a plurality of machining-inserts, an insulated layer, and a flushing cover disposed on the body and coupled to the shaft. The shaft includes a channel, a plurality of first and second openings, each opening connected to the channel. The body includes a plurality of main-flushing channels, each channel connected to a corresponding first opening. The plurality of machining-inserts is spaced apart from each other along a circumferential direction and detachably coupled to a peripheral end portion of the body. Each machining-insert includes at least one third opening connected to a corresponding main-flushing channel. The insulated layer is disposed on top and bottom surfaces of the body. The flushing cover includes a plurality of side-flushing channels and a plurality of fourth openings, each channel connected to a corresponding second opening.

First claim

The invention claimed is:

1. A method of manufacturing an electrode for an electro-erosion process, comprising:
machining a shaft to form a channel, a plurality of first openings, and a plurality of second openings, wherein each opening of the plurality of first and second openings is connected to the channel;
machining a body to form a plurality of main-flushing channels, wherein each main-flushing channel is connected to a corresponding first opening;
coupling the shaft to the body such that each main-flushing channel is connected to a corresponding first opening;
detachably coupling a plurality of machining-inserts to a peripheral end portion of the body, wherein the plurality of machining-inserts is spaced apart from each other along a circumferential direction of the electrode, and wherein each machining-insert comprises at least one third opening connected to a corresponding main-flushing channel;
disposing an insulated layer on a top surface and a bottom surface of the body;
disposing a flushing cover on the body, wherein the flushing cover comprises a plurality of side-flushing channels and a plurality of fourth openings; and
coupling the flushing cover to the shaft such that each side-flushing channel is connected to a corresponding second opening.

2. The method of claim 1 , wherein machining a body comprises:
machining a first half portion of the body to form a plurality of first grooves, wherein the plurality of first grooves is disposed on an inner surface of the first half portion;
machining a second half portion of the body to form a plurality of second grooves, wherein the plurality of second grooves is disposed on an inner surface of the second half portion; and
coupling the inner surface of the first half portion and the inner surface of the second half portion to each other to form the body comprising the plurality of main-flushing channels defined there between the plurality of first grooves and the plurality of second grooves.

3. The method of claim 2 , wherein coupling the inner surface of the first half portion and the inner surface of the second half portion comprises overlapping each first groove with a corresponding second groove to define the corresponding main-flushing channel.

4. The method of claim 2 , wherein coupling the inner surface of the first half portion and the inner surface of the second half portion comprises offsetting each first groove from a corresponding second groove to define the corresponding main-flushing channel.

5. The method of claim 1 , wherein disposing a flushing cover on the body and coupling the flushing cover to the shaft comprises:
disposing a first flushing cover of the flushing cover, on the top surface of the body;
coupling the first flushing cover to the shaft such that each side-flushing channel of the first flushing cover is connected to a first set of second openings of the plurality of second openings;
disposing a second flushing cover of the flushing cover, on the bottom surface of the body; and
coupling the second flushing cover to the shaft such that each side-flushing channel of the second flushing cover is connected to a second set of second openings of the plurality of second openings, wherein the first and second set of second openings are disposed between the plurality of first openings.

6. The method of claim 5 , wherein a first recess portion is defined between a top portion of the plurality of machining-inserts and the first flushing cover and wherein a second recess portion is defined between a bottom portion of the plurality of machining-inserts and the second flushing cover.

7. The method of claim 1 , wherein the body has a first thickness and each machining-insert has a second thickness different from the first thickness.

8. The method of claim 1 , wherein at least one main-flushing channel of the plurality of main-flushing channels comprises a curved channel.

9. The method of claim 1 , wherein at least one side-flushing channel of the plurality of side-flushing channels comprises a curved channel.

10. The method of claim 1 , wherein a number of the third openings in each machining-insert is dependent on at least one a length, a pattern, and an angle of the corresponding main-flushing channel.

11. The method of claim 1 , wherein machining a shaft comprises machining the to form the channel to extend along a lateral direction of the electrode and wherein the plurality of first openings and the plurality of second openings are disposed spaced apart from each other along a circumferential direction of the electrode.

12. The method of claim 1 , wherein the plurality of main-flushing channels and the plurality of side-flushing channels extend along a longitudinal direction of the electrode.

13. The method of claim 1 , wherein the plurality of machining-inserts is in a range from 10 to 20.

14. A method of manufacturing an electrode for an electro-erosion process, comprising:
machining a shaft to form a channel, a plurality of first openings, and a plurality of second openings, wherein each opening of the plurality of first and second openings is connected to the channel;
machining a body to form a plurality of main-flushing channels, wherein each main-flushing channel is connected to a corresponding first opening;
coupling the shaft to the body such that each main-flushing channel is connected to a corresponding first opening;
coupling a plurality of machining-inserts to a peripheral end portion of the body, wherein each machining-insert comprises at least one third opening connected to a corresponding main-flushing channel;
disposing an insulated layer on a top surface and a bottom surface of the body;
disposing a flushing cover on the body, wherein the flushing cover comprises a plurality of side-flushing channels; and
coupling the flushing cover to the shaft such that each side-flushing channel is connected to a corresponding second opening.

15. The method of claim 14 , wherein the plurality of machining-inserts are detachably coupled to the peripheral end portion of the body and are spaced apart from each other along a circumferential direction of the electrode.

16. The method of claim 15 , wherein the plurality of machining-inserts are detachably coupled to the peripheral end portion of the body via a snap fit connection.

17. The method of claim 14 , wherein the channel of the shaft is coupleable to a fluid source that provides a flushing fluid to the body and the flushing cover.

18. The method of claim 17 , wherein the flushing cover further comprises a plurality of fourth openings.

19. The method of claim 18 , wherein the plurality of fourth openings are fluidly coupled to receive a portion of the flushing fluid.

Assignees

• Gen Electric

Inventors

• Luo Yuanfeng
• Trimmer Andrew Lee
• Ibrahim Bernard Adel
• Lombardo Dale Robert
• Vogel John Anthony

Classifications

• B23H2400/10

  for rotating the electrode · CPC title

• B23H1/04 Primary

  Electrodes specially adapted therefor or their manufacture (B23H9/00 takes precedence) · CPC title

• B23H1/10

  Supply or regeneration of working media · CPC title

• B23H3/04 Primary

  Electrodes specially adapted therefor or their manufacture (B23H9/00 takes precedence) · CPC title

• B23H7/22

  Electrodes specially adapted therefor or their manufacture (B23H7/08, B23H7/12, B23H9/00 take precedence) · CPC title