| 摘要 |
The method involves setting filaments of a preform (12) of fibers (14) in tension prior to a polymerization phase by exerting tractive effort at each end of the filaments by a aspiration phenomenon generated in level of a part of a peripheral flank (24) of the preform. The preform is defined by a lower surface, an upper surface (22) and the flank. The preform is subjected to the polymerization phase. Viscosity of resin is kept between 1000 and 50 pascal-seconds at the time setting the filaments in tension. A pressure of less than 0.5 bar absolute is generated in an area of the flank. An independent claim is also included for a tool for making a composite material part from a preform of layers of pre-impregnated fibers of resin. |
