VZLÚ won a grant for their 7th research project in JTI Clean Sky 2

The OASIS project, titled "Optimization of Friction Stir Welding (FSW) and Laser Beam Welding (LBW) for assembly of structural aircraft parts", was evaluated in the fifth call of the JTI Clean Sky 2 Joint Technology Initiative as success and obtained funding. The total contribution of the European Commission to the VZLU amounts to 184,000 EUR. The project is led by the British Institute of TWI, the world leader in LBW and FSW technologies. The project is attended by 5 other partners, including the Romanian aviation manufacturer Romaero. The project was launched on February 1, 2018.

At present, riveting is de facto the only method of joining applied in the manufacture and assembly of aircraft structures from aluminum alloy. For example in the fuselage of large aircraft there are approximately 100,000 of such connections. Riveting is time consuming, expensive and increases the weight of the structure. For this reason, there is an attempt to produce a structure without the use of mechanical coupling elements. The main objective of the project is to achieve mass and cost-effective solution of the typical design of the airframe (such as hull or wing panels) using Friction Stir Welding (FSW) and Laser Beam Welding (LBW).

The objectives of the project will be fulfilled by the cooperation of all six European organizations. Within the project, the VZLU solves the design and specification of experimental methods of identification, standards and is responsible for the selection of materials and samples and test evidence matrix for both static and fatigue tests. Furthermore, the VZLU provides the development of new experimental methods for non-standard identification of connected parts. The demonstrativeness of the technological solution will be ensured through both static and fatigue experiments as well as proofing of the construction against corrosion both in the material area and in selected real parts.