Patent application number | Description | Published |
20100330859 | METHOD OF CREATING COMPOSITE COMPONENTS WITH A PREFORM WITH HYBRID LAYUP - A method for manufacturing a thin structural component made of composite and intended to withstand, on the one hand, working loads and, on the other hand, accidental loadings. The method involves creating a dry fiber preform of the component that is to be manufactured, and impregnating the aforementioned perform with a matrix-forming resin by resin transfer. The perform is created by assembling at least one structural layer, a first surface reinforcing layer on a first face of the aforementioned structural layer, and a second surface reinforcing layer on a second face of the structural layer. A number of plies in the two surface reinforcing layers is first of all calculated so that the finished component will be able to withstand the accidental loadings, then a number of plies in the structural layer is calculated, with due consideration given to increases in structural strength contributed by the surface reinforcing layers so that the finished component will be able to withstand the working loads. | 12-30-2010 |
20110180960 | METHOD FOR PRODUCING A COMPONENT MADE OF A COMPOSITE MATERIAL AND ASSOCIATED DEVICE - A process for manufacturing a piece made of composite material including a fiber preform that is embedded in a matrix, includes placing the preform in a first chamber that is delimited by a first semi-sealed wall, i.e., permeable to gas and impermeable to a product that is able to form the matrix, extracting the gases in a second chamber that is delimited by a second gas-tight wall and the first semi-sealed wall so as to obtain the diffusion of the product that is able to form the matrix in the preform, characterized in that it consists in using—as a first semi-sealed wall—at least one plate with a number of pipes of tapered shape that empty on either side of the at least one plate and at least one semi-sealed membrane that is superposed on the at least one plate. | 07-28-2011 |
20110272852 | METHOD FOR PRODUCING A CONCAVE-SHAPED IN PARTICULAR U-SHAPED PIECE IN A COMPOSITE MATERIAL AND DEVICE FOR CARRYING OUT THE SAME - A process for manufacturing a piece made of composite material with a hollow form and including a fiber preform ( | 11-10-2011 |
20130285283 | MOLD ADAPTED TO RECEIVE A PREFORM OF A COMPOSITE PART AND CORRESPONDING MOLDING METHOD - A mould including: a central core having a side wall with a plane external surface; an internal mould element having an internal surface facing the external surface of the central core, with surfaces inclined to the vertical in order to form an angle of clearance, and a substantially vertical external surface; an external mould element fitted against the internal mould element and having a substantially vertical internal surface facing the external surface of the internal mould element; at least one of the facing surfaces being designed to receive a substantially vertical lateral preform so that the internal mould element and the external mould element are suitable for clamping said lateral preform. | 10-31-2013 |