Fabrikazio gehigarriaren eta forjaren hibridazioa sektore aeronautikorako Inconel 718 piezen fabrikazio eraginkorrerako

Abstract

The present work takes the first steps towards a more efficient Inconel 718 material manufacturing process, which are focussed mainly on the aeronautic sector. Although the mechanical properties obtained by the forging process are excellent, the geometrical complexity is restricted. On the contrary, even if the additive manufacturing (AM) process offers a huge design freedom, there is not enough knowledge regarding the behaviour of the AM manufactured parts. Therefore, in this paper, the hybridization between the commented two processes is researched to overcome the weaknesses of each process. Precisely, the Laser-Directed Energy Deposition (L-DED) technology is selected among the AM processes due to its potential for adding material in the desired area, and though it is appropriate for the hybridization. First of all, the parametrization of the deposited Inconel 718 powder on a forged base is realized and the optimum parameters for the subsequent manufacturing are obtained. A metallography analysis is carried out to ensure the quality of the results. Thereby, after performing the tensile test and obtaining correct mechanical joining values between both processes, the analysed hybridization has been concluded to be feasible.