Sonaca SA

Belgium

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Sonaca SA (Société Nationale de Construction Aérospatiale) is a global aerospace Tier-1 contractor headquartered in Gosselies, Belgium, owned by the Walloon Region through Wallonie Entreprendre. With over 40 years of aerospace manufacturing heritage, Sonaca specializes in the design, engineering, certification, and production of advanced aerostructures for civil and defense aviation.

Sonaca operates extensive sheet metal forming, machining, composite layup, and assembly plants in Gosselies and internationally. Its capabilities hold EN 9100, ISO 14001, EASA Part 21/145, and NADCAP accreditations across heat treatment, NDT inspection, chemical processing, and surface finishing.

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Sonaca maintains industrial forming equipment and certified aeronautical production facilities:

High-Pressure Fluid Cell Forming (Hydroforming): High-tonnage fluid cell hydroforming press (ASEA Quintus, dimensions 2.4 m × 0.9 m × 0.25 m) operating at hydraulic fluid pressures up to 1,000 bar for complex small-to-medium aluminum sheet metal components.
Aerostructure Components Produced: Wing slats, leading edges, winglets, ribs, frames, fuselage sills, stringers with joggles, and weather seal assemblies.
Simulation & Tooling: FE-based hydroforming and stretch-forming numerical simulations for springback compensation to achieve single-step net shapes.
Large Sheet Forming: Transversal stretch forming presses from 500T to 2,500T (including a 400T bulldozer attachment) and 6.5 m rolling machines.
Complementary In-House Capabilities: Solution heat treatment furnaces, aging furnaces (up to 250°C), CNC profile joggling, 5-axis gantry routing, chemical milling, shot peen forming, CAA/TSA/PSA anodizing, robotic automated riveting, and ultrasonic NDT inspection.

Sonaca SA

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