METHOD AND APPARATUS FOR MACHINING COMPONENTS BY MEANS OF ELECTROCHEMICAL MACHINING

WIPO Patent Application WO/2021/013284

A3

The invention relates to a method for machining an in particular planar component (3) by means of electrochemical machining, wherein the component (3) has internal stresses resulting in particular from preceding manufacturing steps. In a first step a) of the method, the component (3) to be machined is provided. Subsequently, in step b), at least two tools are provided in the form of electrodes (8) and, in step c), an electrolyte is provided between the component (3) and the at least two electrodes (8). In step d), a positive voltage is applied to the component (3) and a negative voltage is applied to the at least two electrodes (8). Thus, in step e), by moving the at least two electrodes (8) along their respective movement paths with respect to the component (3), electrochemical machining can take place; in the process, the gap between each electrode (8) and the component (3) is flushed with the electrolyte at least intermittently.

JPH07108420	FINE PERFORATION MACHINING METHOD
JP2010058192	MACHINING ELECTRODE, ELECTROCHEMICAL MACHINING DEVICE, METHOD OF ELECTROCHEMICAL MACHINING, AND METHOD OF MANUFACTURING STRUCTURE
JP2002307239	ELECTROCHEMICAL MACHINING DEVICE AND ELECTROCHEMICAL MACHINING METHOD FOR COMMON RAIL

FEILING NICOLE (DE)
ZEIS MARKUS (DE)
HUTTNER ROLAND (DE)
DOLL CHRISTIAN (DE)

PCT/DE2020/000164

March 18, 2021

July 22, 2020

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MTU AERO ENGINES AG (DE)

B23H3/04; B23H3/10; B23H7/26; B23H9/10

WO2012152254A1	2012-11-15
WO2019210896A1	2019-11-07

RU2623971C2	2017-06-29
DE1540723A1	1970-01-22
US4851090A	1989-07-25
EP1593449A2	2005-11-09
EP1584394A2	2005-10-12
US7204926B2	2007-04-17
EP2011597A2	2009-01-07
EP0098711A1	1984-01-18

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