METHOD FOR PRODUCING REINFORCEMENT FIBER PREFORM, AND REINFORCEMENT FIBER PREFORM

摘要

Provided is a method for producing a reinforcement fiber preform using a braider device, by which the high-strength reinforcement fiber preform with a flange can be easily produced, and also provided is a reinforcement fiber preform. The method for producing reinforcement fiber preform is provided with a step for producing a composition (12) including at least a first cylindrical part (21) and a second cylindrical part (22) in a seamless manner using a braider device (BR), and a step for forming a flange part (31) by deforming the first cylindrical part (21) to thereby protrude the wall of the first cylindrical part (21) from the second cylindrical part (22).