Abstract: Filament is always used in traditional fused deposition molding, which is not suitable for 3D printing of engineering ceramics. A fused deposition modeling method with screw extrusion suit-able for granular feedstock with high solid loading was developed in this study. The key parameters of the extrusion screw were optimized and Polyflow software was used to simulate the screw extrusion process. A uniform and stable extrusion wire was obtained based on the key printing parameters. The reliability of the printed material was analyzed by Weibull modulus. A ceramic material with dense s...
