Forge, foundry and machining of parts
The Snecma Gennevilliers plant, located 15 km from Paris on the banks of the river Seine, specializes in the forging, casting and machining of mechanical parts. The plant employs over 2,000 people, and spans 156,000 square meters (1,684,800 sq ft) of workshops, offices and technical facilities.
The Gennevilliers plant manufactures a wide range of parts and subassemblies for aircraft engines, covering five main types of products:
forged parts (as-forged turbine disks, drums and casings made of nickel and titanium alloy and powder metallurgy)
titanium alloy precision-forged fan blades
equal-axis investment-cast turbine blades
casting parts for combustion chambers, turbine rings and exhaust casings, etc.
Most of these parts are sent to other Snecma plants:
the engine assembly shops at Villaroche and distribution centers for machined parts;
Evry-Corbeil, Le Creusot and Saint-Nazaire (Snecma’s subsidiary FAMAT) plants for as-cast forgings and castings.
Snecma’s Gennevilliers plant also supplies parts to other major aero-engine manufacturers, including General Electric, Avio, Rolls-Royce Deutschland, IHI, Turbomeca, Volvo Aero, etc.
Milestones
1905: Founding of the original engineering company "Société des Moteurs Seguin"
1915: Gnome and Le Rhône merge to create the "Société des Moteurs Gnome & Rhône".
1918: Creation of an independent iron, bronze and aluminum casting and forging unit.
1922: Integration of the forging and casting unit into Gnome & Rhône.
1944: The Gennevilliers site is heavily bombarded and nearly destroyed.
1945: Creation of Snecma and reconstruction of the Gennevilliers site (magnesium and aluminum forge and casting unit).
1963: Compressor blade machining is transferred to Gennevilliers.
1971: Turbine blade machining is transferred from Evry-Corbeil to Gennevilliers.
Expertise
Over a period of 50 years, the Gennevilliers plant has built up unrivalled expertise in the forging, casting and machining of aircraft parts.
Snecma has made Gennevilliers its center of industrial expertise for forged parts, with an unrivaled array of production resources (hydraulic press, counterblow hammer, rolling mills, etc.) and highly advanced simulation tools.
Gennevilliers is the world leader in the precision forging of fan and compressor blade. It uses advanced CAD/CAM (computer-aided design and manufacturing) systems, as well as state-of-the-art robotic adjustment and high-speed machining facilities. It has also gained comprehensive experience in the field of powder metallurgy.
For turbine blade machining, Gennevilliers uses high-performance techniques such as precision casting and the diffusion brazing system. It has also developed new metal alloys. Snecma has filed a number of patents for these technologies.
The Gennevilliers plant is preparing for the future by investing in the development of new 3D modeling software (Simulforge) and engineering new production processes (e.g., shape drilling technology). It is also producing new high-tech products such as integrally-bladed disks (blisks) or new “wide chord fan” style turbine blades for the CFM56-7.
The Gennevilliers plant has received ISO 9001 certification.
Safety - Environment
Gennevilliers, like all Snecma plants, plays an active role in the environmental protection policy pursued by the company. Gennevilliers earned ISO 14001 certification in December 2002.
The plant takes an active approach, by analyzing workshop hazards, integrating prevention into the design of all its products and raising staff awareness on all safety issues.
Snecma
Site de Gennevilliers
171, boulevard de Valmy - BP 31
92702 Colombes Cedex
France
Phone: +33 (0)1 47 60 72 06
Fax: +33 (0)1 47 60 73 00
- Plan d’accès imprimable / Printable access map