Laser metal deposition (LMD) process has the capability to produce functional and complex 3D parts. The deposits characteristics are strongly influenced by the deposition parameters and volume energy input. The aims of this
paper is to predict using a fuzzy logic-based inference system (FIS), the volume energy generated after depositing AISI 316 SS single-beads by LMD. Previously to FIS modeling, the influence of laser power (Lp), laser scan
speed (Lss), powder flow (Pf) and focal length (Fl) on deposited beads were studied by analyzing the response-variables bead height (Bh) and bead width (Bw). ANOVA allowed identifying that Pf mostly affect the Bh, and Lp
has greater significance on Bw. Predictive FIS modeled presented high adequacy assessing the experimental conditions, showing an average relative error of 4.76 %. Thus, the proposed FIS can be can be effectively utilized
to predict the volume energy input and be integrated within an automated LMD environment to reduce complexities in process planning activities and increase process stability.