Activities were aimed not only to compare the three additive processes, namely SLM, EBM and LMD, applied to two materials widely adopted in aeronautics, aluminium alloys and titanium , but also to identify guidelines for the identification of precursors and their characteristics, the design and execution of experiments, and finally the qualification tests. Therefore, deliverables T2D1, T2D2 are methodological deliverables that also deliver guidelines and procedures for the selection of processes and additive materials at the sample level, once the final product specifications have been defined.
The static response of AM products has been deeply investigated, which is comparable, and can even surpass in performance, with traditionally manufactured parts.
A proper characterization of dynamic properties, such as fatigue, was performed. In particular, fatigue performances were determined and linked to typical defects of AM processes. Design rules for structural substantiation and for DED manufacturing of large components have been proposed as general guidelines to design and produce new components via AM
Design for AM (DfAM) rules to minimize needed supports, post-processing and maximize the mechanical properties of the final component were developed, with special focus on Directed Energy Deposition, resulting as the most promising solution for large scale metal AM.
A complete state of the art of in-situ monitoring in AM as viable solution for process qualification was presented to the topic leader, with a wide perspective on all the AM processes
PRIMA created a success story for the DED process in aerospace. This technology is not still mature respect to other AM processes like Powder Bed Fusion one. Nevertheless, PRIMA, together with other partners and AW, has shown as this DED process can be useful for large parts in Titanium alloys material.
POLIMI will foster initiatives exploring the potential advantages of AM for sustainable mobility in three different initiatives developed under the Recovery and Resiliance Italian Initiative under the EU NEXT GEN Plan (Cluster on Sustainable Mobility; Extended Partnership for Circular and Sustainable Made in Italy; Extended Partnership for Space Economy)
