Description du projet
Une méthode non destructive pour tester les pièces d’avion en alliage imprimées en 3D
Le Ti-6Al-4V est un alliage de titane utilisé dans un large éventail d’applications qui exigent une grande solidité, un faible poids et une excellente résistance à la corrosion, comme c’est le cas dans l’industrie aérospatiale. La fabrication additive promet de révolutionner la fabrication de l’alliage Ti-6Al-4V, en permettant la conception de composants fonctionnels aux formes géométriques complexes et d’un poids réduit sans sacrifier la résistance ni la sécurité des composants. Les méthodes d’évaluation de la tolérance aux dégâts pour les pièces d’avion imprimées en 3D sont essentielles pour approuver la fabrication additive dans les composants structurels des avions et répondre aux exigences fonctionnelles et de sécurité. L’objectif principal du projet 3TANIUM, financé par l’UE, est de développer des méthodes non destructives permettant de détecter en toute sécurité les défauts critiques et les défauts que la fabrication additive pourrait introduire, puis de comprendre leur impact sur les propriétés mécaniques des pièces fabriquées en Ti-6Al-4V.
Objectif
To improve aircraft resource-efficiency and to decrease fuel consumption and CO2 emissions innovative solutions with superior mechanical properties for advanced structures are in development. Ti6Al4V alloys, due to a high strength-to-weight ratio compared to steel or aluminium can keep the structural weight and size ratio low. However, lightweight construction with this alloy is currently only possible with conventional techniques as CNC machining, casting that lead to a high proportion of raw material removal. This is not cost-efficient and works with a high ecological footprint. A primary alternative for fabrication of advanced functional lightweight metallic parts is additive manufacturing (AM), offering benefits in terms of weight, design and functionality, lead time and cost/manufacturability and allowing for alternative geometric shapes, thereby decreasing the weight of the component without sacrificing component strength and safety. However, AM has not yet been approved for structural components with high safety requirements to date, as there are still technology gaps: material property control, correlation between process and structural properties, effect of defects, quality control. Material and mechanical properties of AM parts differ substantially from the properties of the same parts produced by conventional casting. Therefore, a damage tolerance assessment needs to be performed for AM parts in commercial aircraft applications to meet functional and safety requirements. The main objective of the 3TANIUM is the establishment of NDT methods that are capable to provide the secure detection of process related critical flaws and defects and to understand their effects on material and mechanical properties in Ti6Al4V AM parts. 3TANIUM will quantitatively assess the applicability of NDT methods applied on appropriately and innovatively post-treated (heat- and surface-treated) AM parts in order to realize benefits offered by AM in the aeronautical industry.
Champ scientifique
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- engineering and technologymechanical engineeringmanufacturing engineeringsubtractive manufacturing
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaeronautical engineering
- engineering and technologyenvironmental engineeringenergy and fuels
- engineering and technologymechanical engineeringmanufacturing engineeringadditive manufacturing
Mots‑clés
Programme(s)
Régime de financement
RIA - Research and Innovation actionCoordinateur
2700 Wiener Neustadt
Autriche
L’entreprise s’est définie comme une PME (petite et moyenne entreprise) au moment de la signature de la convention de subvention.