A slot extruder for use with an additive manufacturing system, which includes a plenum configured to receive a photocurable resin, an elongated slot positioned at a bottom end of the plenum and configured to receive the photocurable resin from the plenum, one or more resin inlet ports extending into the plenum, and one or more mechanisms configured to controllably pressurize and depressurize the photocurable resin in the plenum.

A method of manufacturing a flanged composite component is provided. The method includes coupling a composite structure to s first composite material. The method includes coupling a second composite material to the composite structure and placing a first expansion device within the composite structure. A forming element is coupled to at least one of the first composite material, the composite structure, and the second composite material against the mold. The method includes coupling a pressure element to the forming element to define a space among the mold, the forming element, and the pressure element. The method includes expanding the first expansion device to impart a force to the second composite material to move the second composite material away from the composite structure and into the space to facilitate forming a first flange.

A core material is formed by a core material preparing step of preparing the core material formed by impregnating a glass cloth with a synthetic resin, followed by drying, and a core material planarizing step of planarizing both sides of the core material by grinding. Copper foils are disposed on both sides of the planarized core material thus manufactured, and the resulting assembly is pressed from the both sides with heating, whereby a copper clad laminate of which both sides are planar can be formed.