Research on the relationship between filling pattern and mechanical strength in 3D printing

Abstract 3D printing technology provides a new technical approach for the preparation of complex-type gun propellants. The filling pattern chosen printed propellants has an impact on mechanical strength In this paper, three patterns were used to print propellant samples. There is axial, radial and 45° straight pattern. tensile compressive samples with different compared studied. result shows that largest, largest. significant effect 3D-printed