公开(公告)号：US10507540B2

公开(公告)日：2019-12-17

申请号：US15766533

申请日：2016-10-07

申请人： SAFRAN AIRCRAFT ENGINES ,  PEMTEC

发明人： Janvier Lecomte ,  Mickael Rancic ,  Sophie Tallon ,  Juri Kraft ,  Andreas Grutzmacher

IPC分类号： B23H7/26 ,  B23H3/04 ,  B23H9/10 ,  B23H3/10

摘要： Tooling (10) for making slots in a multistage disk (1) by electrochemical machining. The tooling comprises first and second rings (20) arranged coaxially about a disk axis and configured to act as cathodes, each ring having an inside periphery with a plurality of radial machining projections. The first and second rings (20) are rigidly secured relative to each other. A method of making slots in a multistage disk by electrochemical machining using such a tool.

公开(公告)号：US10399168B2

公开(公告)日：2019-09-03

申请号：US14898781

申请日：2014-06-06

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Janvier Lecomte ,  Jean-Michel Buelyha ,  Juri Kraft ,  Andreas Grützmacher

IPC分类号： B23H3/04 ,  B23H9/00 ,  B23H9/02 ,  F01D5/02 ,  B23H9/10

摘要： A method for producing cavities in a turbomachine disk, the cavities extending between first and second lateral surfaces of the disk, the method including positioning a ring facing the first surface, the ring including an inner periphery including protrusions complementary in shape to the cavities that are to be produced; circulating an electrolyte close to the protrusions on the ring; activating a first translational movement of the ring towards the second surface; activating a rotation of the disk; generating an electric current pulse in the electrolyte when the ring is substantially at the first surface, the pulse resulting in the ionic dissolution of the disk at the protrusions; reducing the speed of rotation to a first reduced speed, when the ring is substantially at the first surface, for a first period of time; and stopping the first translation of the ring when the ring is beyond the second surface.