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DAHLIAS SIGNED

Development and application of hybrid joining in lightweight integral aircraft structures

Total Cost €

EC-Contrib. €

Partnership

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DAHLIAS project word cloud

Explore the words cloud of the DAHLIAS project. It provides you a very rough idea of what is the project "DAHLIAS" about.

selecting configurations successfully alloys quality fastening sealant advantages surface fitting integral treatment performance plan corrosion sealants structure applicable solution solid weldable standard eight excellence devised spot exact optimise weld joining last bond damage samples replacement dissimilar differential online patents friction hence expertise consisting holds lightweight function monitoring demonstrators joints hzg tolerance brings stir introduces rfssw protection mechanical conventional complement technologies welding actual overlap ndt refill protecting structures aircraft industrial parallel dahlias prooven packages adhesive difficult hybrid

Project "DAHLIAS" data sheet

The following table provides information about the project.

Coordinator	HELMHOLTZ-ZENTRUM GEESTHACHT ZENTRUM FUR MATERIAL- UND KUSTENFORSCHUNG GMBH Organization address address: MAX PLANCK STRASSE 1 city: GEESTHACHT postcode: 21502 website: www.gkss.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	Germany [DE]
Total cost	1˙033˙987 €
EC max contribution	953˙887 € (92%)
Programme	1. H2020-EU.3.4.5.4. (ITD Airframe)
Code Call	H2020-CS2-CFP07-2017-02
Funding Scheme	CS2-IA
Starting year	2018
Duration (year-month-day)	from 2018-10-01 to 2021-03-31

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	HELMHOLTZ-ZENTRUM GEESTHACHT ZENTRUM FUR MATERIAL- UND KUSTENFORSCHUNG GMBH HELMHOLTZ-ZENTRUM GEESTHACHT ZENTRUM FUR MATERIAL- UND KUSTENFORSCHUNG GMBH Organization address address: MAX PLANCK STRASSE 1 city: GEESTHACHT postcode: 21502 website: www.gkss.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (GEESTHACHT)	coordinator	283˙225.00
2	INSTITUT DE SOUDURE ASSOCIATION INSTITUT DE SOUDURE ASSOCIATION Organization address address: RUE DES VANESSES 90 ZI PARIS NORD city: VILLEPINTE postcode: 93420 website: http://www.isgroupe.com/ contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	FR (VILLEPINTE)	participant	263˙250.00
3	BELGISCH INSTITUUT VOOR LASTECHNIEK VZW BELGISCH INSTITUUT VOOR LASTECHNIEK VZW Organization address address: ANTOON VAN OSSLAAN 1 city: BRUSSEL postcode: 1120 website: www.bil-ibs.be contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	BE (BRUSSEL)	participant	220˙512.00
4	TRA-C INDUSTRIE SAS TRA-C INDUSTRIE SAS Organization address address: ZAC LES OLMES city: LES OLMES postcode: 69490 website: www.tra-c.com contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	FR (LES OLMES)	participant	120˙837.00
5	CHEMETALL GMBH CHEMETALL GMBH Organization address address: TRAKEHNER STRASSE 3 city: FRANKFURT AM MAIN postcode: 60487 website: www.chemetall.com contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (FRANKFURT AM MAIN)	participant	66˙062.00

Map

Project objective

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.

Publications

List of publications.
year	authors and title	journal	last update
2019	K. Faes Refill friction stir spot welding of aluminium EN AW-7075-T6 published pages: , ISSN: , DOI:	Presented at the â€œ6th International Conference on Scientific and Technical Advances on Friction Stir Welding & Processingâ€	2020-03-05
2019	K. Faes Refill friction stir spot welding of EN AW-7075-T6 sheets published pages: , ISSN: , DOI:	Erfahrungsaustausch Reibschweisssen, SLV Munich, 12 March 2019.	2020-03-05
2019	J.F. dos Santos Development and Application of Hybrid Joining in Lightweight Integral Aircraft Structures â€“ DAHLIAS published pages: , ISSN: , DOI:	Proceedings of the â€œ2019 International Congress on Welding, Additive Manufacturing and Associated Non-Destructive Testingâ€	2020-02-28
2019	J.F. dos Santos Development and Application of Hybrid Joining in Lightweight Integral Aircraft Structures â€“ DAHLIAS published pages: , ISSN: , DOI:	Presented at theâ€œ6th International Conference on Scientific and Technical Advances on Friction Stir Welding & Processingâ€	2020-02-28

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The information about "DAHLIAS" are provided by the European Opendata Portal: CORDIS opendata.