| Abstract Scope |
This study investigates the influence of multi-laser process parameters on the porosity and alignment of Laser Powder Bed Fusion (LPBF) manufactured Inconel 718. The LPBF process, allows for the fabrication of complex geometries with high material efficiency. However, the quality of the manufactured parts, particularly porosity and alignment, are significantly affected by the process parameters used during printing. In this study, we focus on multi-laser stitching, a technique that involves the use of multiple lasers to manufacture a single part. Process parameters were systematically varied during the printing of jailhouse type specimens, including build direction, laser power, scanning speed, and alignment, to analyze their effects on the resulting porosity. We observed that certain combinations of process parameters can significantly reduce porosity, leading to improved mechanical properties. This research provides insights for optimizing the LPBF process for the manufacturing of Inconel 718, by presenting a correlation between process parameters and resulting porosity. |