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1. (WO2017060651) TOOL FOR MACHINING WELLS IN MULTI-STAGE DISCS BY PECM, ELECTROCHEMICAL MACHINING ASSEMBLY AND MACHINE INCLUDING SAID TOOL, AND METHOD USING SAID TOOL

Pub. No.:    WO/2017/060651    International Application No.:    PCT/FR2016/052600
Publication Date: Fri Apr 14 01:59:59 CEST 2017 International Filing Date: Sat Oct 08 01:59:59 CEST 2016
IPC: B23H 9/10
B23H 3/04
Applicants: SAFRAN AIRCRAFT ENGINES
PEMTEC
Inventors: LECOMTE, Janvier
RANCIC, Mickaël
TALLON, Sophie
KRAFT, Juri
GRUTZMACHER, Andreas
Title: TOOL FOR MACHINING WELLS IN MULTI-STAGE DISCS BY PECM, ELECTROCHEMICAL MACHINING ASSEMBLY AND MACHINE INCLUDING SAID TOOL, AND METHOD USING SAID TOOL
Abstract:
The invention relates to a tool (10) for forming wells in a multi-stage disc (1) by electrochemical machining. The tool comprises first and second rings (20) which are coaxial according to a disc axis, configured to be used as cathodes, each ring having an inner periphery including a plurality of radial machining projections. The first and second rings (20) are rigidly attached to one another. The invention also relates to a method for forming wells in a multi-stage disc by electrochemical machining using such a tool.