Patent ID: 8591681

Claim:
A method for producing a composite material mold for a composite material long member, comprising the steps of: molding a material of a mold having a two-dimensional shape and in a semi-cured state by causing a material obtained by overlapping a required number of prepreg sheets in which a composite material such as carbon fiber is impregnated with thermosetting resin to continuously pass through a hot press and a heat curing oven while applying a tension to the material; plastically deforming the mold material into a three-dimensional shape by mounting the mold material in a semi-cured state on a plurality of templates vertically provided on a base plate of a molding apparatus at an interval; completely curing the mold material in a semi-cured state by heating and pressurizing the molding apparatus on which the mold material deformed into a three-dimensional shape is mounted; forming a joggle portion partially having a different shape in section by laminating a required number of prepreg sheets on a portion of a surface of the completely-cured mold material; and completely curing the mold material where the joggle portion is formed by heating and pressurization.