Manufacturing method of composite material member and prepreg sheet laminate

摘要

A manufacturing method of composite material member includes a step of shaping a laminate including laminated prepreg sheets along a mold. The laminate includes a first layer in which fibers are oriented in single direction. In the first layer, a first surface crossing the single direction and a second surface crossing the single direction are confronted each other such that the first surface and the second surface face each other. Since the fibers are discontinuous between the first surface and the second surface, the laminate is easily shaped and wrinkles are hard to be generated in a composite material member to be manufactured from the laminate.

主权项

1. A manufacturing method of a composite material member comprising shaping a laminate including laminated prepreg sheets along a mold,
wherein the laminate includes a first layer in which fibers are oriented in a single direction, wherein, in the first layer, a first surface crossing the single direction and a second surface crossing the single direction confront each other such that the first surface and the second surface face each other, wherein the first layer includes a first point and a second point, wherein, before said shaping, the first point and the second point are arranged on a straight line which is parallel to the single direction and crosses the first surface and the second surface at a first intersection and a second intersection such that the first intersection and the second intersection are arranged between the first point and the second point, wherein said shaping includes making the laminate to be bent such that a first flange connected to one side of a web and a second flange connected to another side of the web are formed, wherein the first flange and the second flange face each other, and the first flange is curved to be convex toward the second flange, and wherein, after said shaping, the first point and the second point are arranged in the web while the first intersection and the second intersection are arranged in the first flange.