| Abstract Scope |
Binder Jet (BJ) additive Manufacturing creates geometry by printing droplets of liquid binder into thin layers of dry powder. The interaction of the droplets with the powder is critical to forming dense, defect-free parts. However, this core, highly dynamic, process of BJ is poorly understood. Traditional printing parameters use single global printing parameters. However, this work shows how the printing outcomes are depending on droplet size, droplet velocity, printing pattern, and part geometry. To better understand this process, an extensive experimental study of printing has been undertaken that looks at the impact of these key process variables on the formation of lines, layers, and multilayered parts. These results provide insight into the selection of print saturation and methods to avoid printing defects such as balling during printing. |