Topology optimization incorporating a passageway for powder removal in designs for additive manufacturing

Abstract In powder-based additive manufacturing, the unused powder must be removed after printing. Topology optimization has been applied to designs for which may lead with enclosed voids, where will trapped inside during A topology method incorporating a removal passageway is developed avoid being structure. The generated by connecting entrance, all and exit sequentially. Each void limited have only one pair of inlet outlet guarantee single-path flow facilitate manufacturing. path optimized minimize its influence on structural stiffness. proposed was two practical case studies passageways were successfully.