| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for production of a prepreg having discontinuous fibers, by which a unidirectional discontinuous fiber prepreg having uniform quality can be obtained and which can easily change the formation pattern of a cutting line and has high flexibility of prepreg design. <P>SOLUTION: A strip 22 formed by aligning continuous fibers is laminated to a resin-supported sheet 24a including a partially cured thermosetting resin layer to form a laminate. Then, the laminate is irradiated with laser beam, and the continuous fibers in the strip 22 of the laminate is cut at a plurality of places in a longitudinal direction by cutting device 26 to form the cutting parts in a direction crossing the continuous fibers. After that, the strip 22 is impregnated with the thermosetting resin layer to be formed into the prepreg, or after being formed into the prepreg, the laser beam is irradiated to form the cutting parts. <P>COPYRIGHT: (C)2012,JPO&INPIT |
