Electrochemical machining tool, electrochemical machining system, and perforated member manufacturing method

Patent metadata

Field	Value
Publication number	US-9878388-B2
Application number	US-201314443754-A
Country	US
Kind code	B2
Filing date	Dec 4, 2013
Priority date	Dec 12, 2012
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

The present invention is an electrochemical machining tool equipped with a tool body that comprises: an electrode that extends along an axial line and inside which a flow channel through which an electrolytic solution flows towards the tip end is formed; an insulating layer covering the outer circumferential surface of the electrode so as to expose the tip end face of the electrode; and a flow channel-partitioning part for partitioning the flow channel into a first flow channel containing the axial line and a second flow channel positioned on the outer circumferential side of the first flow channel. The electrochemical machining tool has a configuration in which a fluid outflow section for directing electrolytic solution, which is flowing through the second flow channel, outward in the radial direction of the tool body is formed on a portion of the circumference of the tool body.

First claim

The invention claimed is:

1. An electrochemical machining tool comprising:
a tool body that includes
an electrode formed of a flexible electroconductive material in a tube shape that extends along an axial line, having an inside formed with a flow channel along which an electrolytic solution flows toward a tip end,
an insulating layer for covering an outer circumferential surface of the electrode such that the electrode is exposed at a tip end face, and
a flow channel partitioning part for partitioning the flow channel into a first flow channel that includes the axial line and a second flow channel that is positioned on an outer circumferential side of the first flow channel; and
a fluid outflow section for directing the electrolytic solution flowing through the second flow channel outward in a radial direction of the tool body, formed on a portion of the circumference of the tool body.

2. An electrochemical machining system comprising:
the electrochemical machining tool described in claim 1 ;
a guide part for guiding the electrochemical machining tool in a predetermined advancing direction with respect to a workpiece;
a movement mechanism for causing the electrochemical machining tool to advance; and
an electrolytic solution for supplying part that supplies the electrolytic solution independently to each of the first flow channel and the second flow channel.

3. A perforated member manufacturing method for forming a machined hole in a workpiece using the electrochemical machining tool described in claim 1 .

4. The electrochemical machining tool according to claim 1 , further comprising:
a plug part provided inside the electrode for blocking the second flow channel,
wherein
the fluid outflow section is formed further to a rear end side of the tool body than the plug part.

5. An electrochemical machining system comprising:
the electrochemical machining tool described in claim 4 ;
a guide part for guiding the electrochemical machining tool in a predetermined advancing direction with respect to a workpiece;
a movement mechanism for causing the electrochemical machining tool to advance; and
an electrolytic solution for supplying part that supplies the electrolytic solution independently to each of the first flow channel and the second flow channel.

6. A perforated member manufacturing method for forming a machined hole in a workpiece using the electrochemical machining tool described in claim 4 .

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Mukai Yosuke
• Tamura Kazuhisa
• Asano Shin
• KOBAYASHI Tetsuhei
• Shintani Tomofumi

Classifications

• B23H9/16

  using an electrolytic jet · CPC title

• B23H9/10

  Working turbine blades or nozzles · CPC title

• B23H3/04 Primary

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

• B23H9/14

  Making holes · CPC title

• B23H7/265

  Mounting of one or more thin electrodes · CPC title