In this Thesis assignment, the goal was to find the optimum process parameters to produce Inconel 718 alloy via Directed Energy Deposition (DED). Therefore, for this purpose, the experimental analysis considered three different steps in which the optimum process parameters are achieved step by step. More in detail, the characterisation regarded: 40 “Single Scan Tracks” (SSTs), 24 “Single Layers” (SLs) and 3 “Cubes”. Indeed, the laser-related parameters like laser power (P), laser scan speed (SS) were selected according to the SSTs analysis, whereas the optimum hatching distance (Hd) was estimated according to the SLs. The best melt pool in terms of residual defect and geometrical regularity was chosen as the best-deposited melt pool, and accordingly, the process parameters associated with that melt pool were selected as the optimum parameters.