A dispenser (100) for manufacturing an object is provided herein. The dispenser (100) includes a material feed portion (108) configured to provide a printing material. The dispenser (100) further includes a cold end portion (104) configured to cool down temperature of the printing material. The system further includes a coolant source (304) configured to use a liquid as coolant and provide cooling to the printing material. The dispenser (100) further includes a hot end portion (102) configured to convert printing material into a molten form and output the printing material for printing via a dispenser outlet (116).

A dispenser (100) for manufacturing an object is provided herein. The dispenser (100) includes a material feed portion (108) configured to provide a printing material. The dispenser (100) further includes a cold end portion (104) configured to cool down temperature of the printing material. The system further includes a coolant source (304) configured to use a liquid as coolant and provide cooling to the printing material. The dispenser (100) further includes a hot end portion (102) configured to convert printing material into a molten form and output the printing material for printing via a dispenser outlet (116).

A preform manufacturing apparatus includes an injection molding unit, a post-cooling unit, and a taking-out unit. The post-cooling unit includes a first mold which accommodates the preform inside and which contacts the outer surface of the preform; and a second mold which is inserted into the preform and which is provided with at least a cooling rod having an internal flow path for compressed air and a tip piece which is attached to a tip side of the cooling rod. The tip piece has a shape corresponding to a bottom of the preform and includes a mold surface that receives the bottom, and an opening formed on a base end side of the mold surface and communicating with the flow path of the compressed air. The post-cooling unit cools the bottom of the preform while pressing the bottom of the preform against the first mold with the mold surface of the tip piece, and cools a body portion of the preform while pressing the body portion against the first mold with the compressed air passing through the opening.

A preform manufacturing apparatus includes an injection molding unit, a post-cooling unit, and a taking-out unit. The post-cooling unit includes a first mold which accommodates the preform inside and which contacts the outer surface of the preform; and a second mold which is inserted into the preform and which is provided with at least a cooling rod having an internal flow path for compressed air and a tip piece which is attached to a tip side of the cooling rod. The tip piece has a shape corresponding to a bottom of the preform and includes a mold surface that receives the bottom, and an opening formed on a base end side of the mold surface and communicating with the flow path of the compressed air. The post-cooling unit cools the bottom of the preform while pressing the bottom of the preform against the first mold with the mold surface of the tip piece, and cools a body portion of the preform while pressing the body portion against the first mold with the compressed air passing through the opening.

A method and apparatus are provided for mitigating if not eliminating voids and improving wetting of fibers in prepreg sheet materials.

A method and apparatus are provided for mitigating if not eliminating voids and improving wetting of fibers in prepreg sheet materials.

A method and apparatus are provided for mitigating if not eliminating voids and improving wetting of fibers in prepreg sheet materials.

A method and apparatus are provided for mitigating if not eliminating voids and improving wetting of fibers in prepreg sheet materials.