Snecma Propulsion Solide - Le Haillan
Case Study Snecma Propulsion Solide - Le Haillan

Automated large-scale serial inspection

Snecma Propulsion Solide designs, produces and markets rocket engines and composite materials for the defense, aviation and aerospace industries and other related fields. Within the French national defense programs M45 and M51 as well as the European space programs such as Ariane 5 and Vega, Snecma is a first-choice business partner.

Snecma is a market leader in the manufacturing of jets and propulsion systems for strategic and tactical missiles as well as carrier rockets and fighter planes. In addition, high performance composites for rocket, plane and military propulsion systems, equipment and armament for manufacturing plants (thermal processing, semi-conductors, glassworks or chemical) or sensors for aerospace and military rockets, satellites, dynamometers or nuclear power plants are also produced.

With the armament and aerospace industries, manufacturing precision and the assembly of parts are hugely important. Damien Darriet is in charge of service methods and non-destructive dimensional control at Snecma. His department tackles the development of the solutions for the dimensional and material inspection, while at the same time focusing on modifying the existing equipment in order to keep the processes as simple as possible for the equipment users. Darriet explains: «How we perform dimensional inspection at Snecma is often determined by very unusual factors. The pyrotechnical regulations are extremely tight. For example, no more than 5 people are allowed to work on a single piece of equipment at any one time. The accuracy requirements are just as stringent. The internal rules mandate that the measurement uncertainty of the measurement equipment (standard deviation) is 16 times better than the assembly accuracy. Besides, the sheer size of our equipment – up to 12 m in height and 50 tons of weight – limit the kind of measurement equipment we are able to use. . . . .

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