Brief description of embodiments of a curved profile in the composite material from a preform for a straight line of layers of fibers

摘要

The object of the invention is a method of implementation of a piece from a preform rectilinear layers of fibers impregnated with pre -, said method consisting of stacking of layers on a mandrel deformable (22) and to roll up said mandrel deformable (22) and the sheets stacked on a bending tool according to an axis of rotation, said profile comprising a stack of n layers, at least a first part (12) of the section being disposed in a plane perpendicular to the axis of rotation (x) and at least a second part (14) parallel to the axis (x) comprising at least one layer of fibers oriented at 0°, according to the length of the preform, characterized in that it consists in stacking the n layers of fibers on the deformable tube (22), the latter comprising a neutral fiber (40) arranged between the last layer of fibers oriented at 0° stacked and the rotation axis (x), to be bent in a single phase, the n layers interposed between the deformable tube (22) and the bending tool and to polymerize the said n sheets bent.