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：US11752562B2

公开(公告)日：2023-09-12

申请号：US17619866

申请日：2020-06-16

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Mickael Rancic ,  Jérôme Salmon ,  Pierre Marcel Emilien Navar

IPC分类号： B23C3/12 ,  B25J9/16 ,  B25J11/00

CPC分类号： B23C3/12 ,  B23C2215/04 ,  Y10T409/303752 ,  Y10T409/304256

摘要： A method for deburring an aeronautical part with an articulated tooling including a plurality of axes of rotation, the aeronautical part including at least one edge to be deburred, the articulated tooling including a tool holder, holding a calibration tool and a machining tool, the calibration tool and the machining tool being fixed to the tool holder and being immovable relative to one another, the method including steps of calibrating the calibration tool and the machining tool, of parameterizing the aeronautical part, of deburring the at least one edge to be deburred with the machining tool moving along a predetermined trajectory, on the basis of the parameters obtained during the parameterization step.

公开(公告)号：US11712744B2

公开(公告)日：2023-08-01

申请号：US17290945

申请日：2019-12-17

申请人： SAFRAN AIRCRAFT ENGINES ,  UNIVERSITE DE LORRAINE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

发明人： Mariem Msakni Malouche ,  Janvier Lecomte ,  Mickael Rancic ,  Nicolas Stein ,  Clotilde Boulanger

IPC分类号： B23H3/08 ,  C25F3/22 ,  C25D5/18

CPC分类号： B23H3/08 ,  C25F3/22 ,  C25D5/18

摘要： An electrolyte for the electrochemical machining of a γ-γ″ nickel-based superalloy, includes NaNO3 in a content of between 10% and 30% by weight relative to the total weight of the electrolyte; a complexing agent selected from sulfosalicylic acid at a pH of between 3 and 10 and nitrilotriacetic acid at a pH of between 7 and 14, the complexing agent being present in a content of between 1% and 5% by weight relative to the total weight of the electrolyte; optionally, an anionic surfactant in a content of between 1% and 5% by weight relative to the total weight of the electrolyte; optionally, NaOH in order to obtain the desired pH; and an aqueous solvent.

公开(公告)号：US11548085B2

公开(公告)日：2023-01-10

申请号：US17290936

申请日：2019-12-17

申请人： SAFRAN AIRCRAFT ENGINES ,  UNIVERSITE DE LORRAINE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

发明人： Mariem Msakni Malouche ,  Janvier Lecomte ,  Mickael Rancic ,  Nicolas Stein ,  Clotilde Boulanger

IPC分类号： B23H3/08 ,  C25F3/22

摘要： An electrolyte for electrochemical machining of a γ-γ′ nickel-based superalloy includes NaNO3 at a content of between 10 and 50% by weight relative to the total weight of the electrolyte; an additive chosen from KBr, NaBr, KI, NaI and mixtures thereof, in an additive/NaNO3 molar ratio of between 1 and 15; optionally an ethylenediaminetetraacetic acid-based complexing agent at a content of between 1 and 5% by weight relative to the total weight of the electrolyte at a pH of between 6 and 12; optionally an anionic surfactant at a content of between 1 and 5% by weight relative to the total weight of the electrolyte; optionally NaOH to obtain the appropriate pH; and an aqueous solvent.