Snecma

Snecma Et Snecma Services

Snecma Services

Gerard Derrien

Claude Leonetti

Claude Andre Pagnon

Stephane Kerneis

Sadia Bousquet

Stephane Michel Kerneis

Bernard Bouet

Claude Andre Charles Pagnon

Eric Christian Jean Pinto

Sebastien Wilk

Carolina Garcia-Lopez

Jean-Jacques Nedelec

Ludovic Gasne

Eric Christian Pinto

Jacques Francois Le Saint

Tooling for removing sand from a turbine engine, such as an airplane turbojet, the tooling including at least one endoscopic display device including a display and a duct having light guide and image transmission device mounted therein, a suction device having a suction device connected to a suction duct fastened to the duct of a display device, and a plasma jet generator device including a plasma torch connected to gas supply and electricity power supply suitable for operating the plasma torch, the plasma torch being fastened to the duct of an above-mentioned display device.

Tooling for removing sand from a turbine engine

A method of reshaping a turbine engine blade including at least one deformed zone, the method including peening the deformed zone to be able to restore a shape of the at least one deformed zone.

Method for reshaping a turbomachine blade that has at least one zone that has become deformed using peening

A device for inspecting an annular sealing wiper extending at the surface of a bladed-wheel drum of a rotor. The device includes a carriage including at least two guide wheels and carrying a probe situated in a location such that, when the carriage is in position, the probe is positioned facing an edge of the wiper for inspection and at a determined distance therefrom.

Nondestructive test of a sealing member

An automatic method of non-destructive inspection of a mechanical part by comparing images of the surface of the part with reference images recorded in a database, by a digital image acquisition device including an image sensor, a lighting source, and a mechanism for moving the image sensor and the lighting source relative to the mechanical part.

Method for the non-destructive inspection of a mechanical part

A method and a device for machining the leading edge of a turbine engine blade by a machining center for which parameters are set is disclosed. The method includes: acquiring a 3D profile of the leading edge of the blade; calculating at least one characteristic of the leading edge from the 3D profile; comparing the value of the calculated characteristic with a known theoretical value of the characteristic to obtain an elementary difference for the characteristic; calculating at least one undulation of the leading edge between at least two consecutive elementary sections from the 3D profile; optimizing the elementary differences obtained as a function of the undulation; setting the parameters of the machining center as a function of the optimized elementary differences for the elementary sections to define machining passes over the leading edge; and machining the leading edge of the blade with the machining center with parameters set.

Method and device for machining the leading edge of a turbine engine blade

A method of repairing a turbomachine blisk having at least one damaged zone by build-up of metal in the damaged zone using a laser build-up welding machine is disclosed. The method includes preparing the damaged zone by machining the damaged zone to obtain a zone of defined profile to be repaired, build-up welding of a start-of-run test piece that includes the defined profile using the laser build-up welding machine, checking geometric and metallurgical quality of the test piece, and build-up welding the zone to be repaired of the blisk using the laser build-up welding machine.

Method of repairing a blisk and test pieces by welding

Growing community of inventors

Houilles, France

Gerard Derrien