ADDITIVELY MANUFACTURED CASTING ARTICLES FOR MANUFACTURING GAS TURBINE ENGINE PARTS

摘要

A method of preparing a casting article for manufacturing a gas turbine engine part according to an exemplary aspect of the present disclosure includes communicating a powdered material to an additive manufacturing system, the powdered material including at least one of a silica material, an alumina material, and a refractory metal material. The method includes using the additive manufacturing system to manufacture a casting article layer by layer, the casting article including a plurality of circuit forming portions, at least one of the circuit forming portions including an interior channel that establishes a hollow opening through the circuit forming portion.