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News

JEC Composites Exhibition: Loiretech Specifies low viscosity resin for Airbus composite front panels

Huntsman Advanced Materials (Duxford) : 26 March, 2013  (Application Story)
Araldite 8615 resin has been used by French tooling specialist Loiretech in the manufacturing process of the prototype phase for the lower front panels on the new A350 Airbus.
JEC Composites Exhibition: Loiretech Specifies low viscosity resin for Airbus composite front panels

The new Airbus 350 is the first aircraft of its kind which has wings and fuselage made primarily of carbon reinforced polymer. On this project Loiretech was subcontracted by Aerolia, the French aerostructure manufacturing company and partner to Airbus, to design and produce moulds against a demanding timeframe.

Loiretech chose Araldite 8615 for this particular application primarily for its very low viscosity, which delivers optimum impregnation of the carbon fibres during the infusion process. It also offers the long pot life that facilitates the very large tooling capability required in aircraft manufacturing for parts typically up to 20m long. The Araldite system was supplied by DiL France, Huntsman Advanced Materials’ area distributor.

Working with products and technical support supplied by Huntsman Advanced Materials the team from Loiretech completed the project in an impressive 16 weeks.

“The mould was created using resin infusion on a CNC milled master model. Araldite 8615’s high Tg is an important parameter for such moulds. With its ability to withstand 300 curing cycles at temperatures up to 180C, it fulfils critical performance criteria and we have already used this type of system to make large composite moulds for the aerospace industry in serial production,” said Marc Moret, President of Loiretech.

Originally founded in 1988 under the name Loire Modelage, Loiretech designs and manufactures tooling for large, complex thermoplastic and composite parts for customers primarily in the Aerospace, Automotive, Defence and Rail industries. The company has considerable experience with resin infusion technologies.

Process steps: (1) Master model milling; (2) Resin infusion setup; (3) Mould structure assembly; (4) Final mould

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