Abstract Scope |
In this study, the effect of printing orientation on ceramic binder jetting additive manufacturing was investigated. Flexural samples were printed with six different orientations using commercially available alumina powder. Then, the samples were cured, debound, and finally sintered in a furnace. Afterward, three-point bending, Archimedes method, and microscopy were used to study the mechanical behavior, density, and pore distribution, respectively. The results showed that although there was no considerable change in the density, the flexural strength varied significantly in a wide range from 82.8±6.1 MPa to 151.6±4.6 MPa among different printing orientations. The microscopy showed that the different distributions of interlayer pores were the main reason for the large variation in the flexural strength. |