Schematic diagram of integral sintering process

The microstructures of the printed and sintered samples and mechanical prop erties of the composites were investigated. Carbon fibers and aluminum powder were bonded together with resin.

The spatial arrangement of the carbon fibers was fixed in the aluminum matrix by shear-induced alignment in the 3Dprinting process. As a result, the elongation of the composites with a parallel arrangement of aligned fibers and the impact toughness of the composites with an orthogonal arrangement were 0.82% and 0.41 J/cm2, respec tively, about 0.4 and 0.8 times higher than that of the random arrangement