| 摘要 |
The invention relates to a method for manufacturing a preform made of reinforcement fibers woven in a longitudinal direction. Said preform is provided so as to be impregnated with resin in order to form an elongate element having a variable transverse cross-section (20), simultaneously including a reduction (or increase) in width and an increase (or reduction) in height. Said variable cross-section comprises, along the length thereof, a consistent number (c) of continuous warp threads arranged in layers. Said method for reducing width comprises carrying out a change in weave, adding additional weft threads, and simultaneously drawing the teeth of the longitudinal beater reed closer together so as to increase the number of layers. |
