Prepreg molding method
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsToshiki KITAZAWA, Masahiko SHIMIZU, Shoya MANO, Hiromichi AKIYAMA, Kenji MURAKAMI
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Abstract
The purpose of the present invention is to suppress generation of creases when one layer of a prepreg is molded at a time and molded layers of the prepreg are laminated one by one. A prepreg molding method comprises: a step of bending a long prepreg elongated in one direction into a downwardly convex U-shape in cross section; a step of bringing a lower part of the prepreg bent in the U-shape into contact with a bottom part of a mold having a concave cross section and mounting the prepreg on an inner part of the mold; and a step of pressing and deforming the prepreg mounted on the inner part of the mold using pressing part.
Claims14
A prepreg molding method comprising:
- a step of bending a first prepreg to have a downward projecting U shape in a cross-sectional shape, the first prepreg having an elongated shape long in one direction;
- a step of placing the first prepreg inside a molding tool having a recessed cross section such that a lower portion of the first prepreg bent into a U shape comes into contact with a bottom portion of the molding tool or an upper surface of a second prepreg molded and placed along the molding tool;
- and
- a step of pressing and deforming the first prepreg, which is placed inside the molding tool, by using a pressing unit.
A prepreg molding method comprising:
- a step of placing a first prepreg on a molding tool having a recessed cross section or a projecting cross section;
- and
- a step of pressing and deforming the first prepreg, which is placed on the molding tool, by using a pressing unit,
- wherein the pressing unit is an injection nozzle that injects a fluid, and deforms the first prepreg along the molding tool by using a pressure of the injected fluid.
Dependencies are inferred from the claim text.