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DAHLIAS

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Development and application of hybrid joining in lightweight integral aircraft s...

Development and application of hybrid joining in lightweight integral aircraft structures The main objective of the DAHLIAS project is to optimise hybrid joining (Refill Friction Stir Spot Welding, RFSSW, with an adhesive sealant bond) for application in aircraft structures. RFSSW is a solid-state joining technology es... ver más

30/09/2021

HEREON

1M€

Presupuesto del proyecto: 1M€

Líder del proyecto

HELMHOLTZZENTRUM HEREON GMBH No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2021-09-30

JTI-CS2-2017-CfP07-AIR-02-58: Optimization of hybrid joining (Ref... Specific Challenge:The research task will be to develop optimal parameters of welding lap joints wit...

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Este proyecto no cuenta con búsquedas de partenariado abiertas en este momento.

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5 Participantes

HEREON

283.23K€ | Lider

INSTITUT BELGE DE LA SOUDURE...

220.51K€ | Participante

66.06K€ | Participante

TRA-C

120.84K€ | Participante

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Duración del proyecto: 35 meses Fecha Inicio: 2018-10-05
Fecha Fin: 2021-09-30

Líder del proyecto

HELMHOLTZZENTRUM HEREON GMBH No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 1M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The main objective of the DAHLIAS project is to optimise hybrid joining (Refill Friction Stir Spot Welding, RFSSW, with an adhesive sealant bond) for application in aircraft structures. RFSSW is a solid-state joining technology especially applicable to lightweight alloys in similar and dissimilar configurations. The process has been successfully applied to difficult-to-weld and non-weldable alloys and is considered a potential replacement of mechanical fastening. Overlap joints in aircraft structures require the use of sealants for corrosion protection reasons. Using sealants with an adhesive function would complement the high quality joints produced by RFSSW by not only protecting against corrosion but also contributing to the overall mechanical performance of the structure. To achieve the main goal of this project a work plan consisting of eight work packages has been devised. Two work packages are focused on the RFSSW process development using standard samples with and without adhesive sealant. In parallel the adhesive sealant technology, including surface pre-treatment will be developed. The hybrid joining solution developed in this project will be compared to conventional joining technologies to define its potential. Hybrid joining brings a number of advantages to production and performance of aircraft structures. The change from differential to integral design introduces new challenges in the analysis of mechanical performance. Hence, the damage tolerance behaviour of hybrid joints is also investigated in this project. Quality control methods will be investigated by selecting NDT methods and by process control based on online monitoring of parameters. In the last phase of this project technology demonstrators will be produced to evaluate the capabilities of the proposed technology in actual aircraft structures. The consortium (3 R&D and 2 industrial partners) has the exact fitting, prooven expertise and high excellence. HZG (coordinator) holds key patents.

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