New aerospace advanced cost effective materials and rapid manufacturing technologies

This project will focus on the development of technologies and methodologies which have the potentialto save costs and time across the whole life cycle of the aircraft (design, production, maintenance, overhaul, repair and retrofit), including for certification aspects. Moreover it will also target the integration of additional functions or materials in structural components of the aircraft, the increased use of automation.The first proposed step is the introduction of the γ-TiAl alloy, a well known promising advanced material for aerospaceapplications and a revolutionary manufacturing technology. Its specific stiffness and strength, as compared to its low weight,potentially leads to large weight savings (50%), and therefore lower mechanical loads on thermomechanical stressed parts,compared to the common Ni based superalloys. The integration of new material and new manufacturing technology willpositively impact several aspects of the manufacturing and maintenance chain, starting from the design, the production, therepair).The aim of this project is twofold:- On one side the work will be focused on the development and integration at industrial of a IPR protected gasatomization process for producing TiAl powders, whose properties must be highly stable from batch to batch.Thanks to the stability of the chemical and granulometric properties of the powders, the application of the RapidManufacturing technique to the production of TiAl components will be economically affordable. While this technique isby now well-known, its main drawback resides in the scarce quality of the starting powders.- The other main drawback for the wide industrial application of TiAl components is the integrated optimisation of allthe machining steps, that means the setting up of machine tool characteristics and parameters, cutting toolgeometry, substrate and coating materials, advanced lubrication technologies.