Experimental study and parameter optimization of laser wire additive manufacturing of titanium alloy

In the single-pass multilayer deposition process of laser wire additive manufacturing, variations in process parameters significantly influence the morphology of the deposited layer. This study experimentally investigates how the main process parameters (laser power, scanning speed, and wire feeding speed) affect the morphology of the deposited layer. It was found that each parameter has distinct effects on the geometrical morphology of deposition. Simultaneously, aiming to enhance the surface topography of the deposited layer and its bonding with the substrate, three optimization objectives are defined. An optimization model is then constructed using experimental data to refine the process parameters. The optimal parameters are determined through experimentation, resulting in significant enhancement of the deposited layer’s topography.