Device for shaping a fibrous preform for producing a bladed part of a turbomachine

A method for shaping at least one preform for producing a bladed part of a turbomachine, by a device for shaping at least one fibrous preform for producing a bladed part of a turbomachine, this device including a mould formed by several parts that are interlocked with each other, this mould defining at least one internal cavity configured to receive the preform and to fully enclose said preform, this cavity comprising first and second portions which are suitable to receive respectively two platforms of the bladed part, said cavity further comprising a third portion which is suitable to receive a blade of the bladed part and which extends between said first and second portions,

• wherein said mould comprises at least:
• a lower shell which forms a lower end of the mould and which comprises a convex curved surface of said third portion,
• an upper shell which forms an upper end of the mould and which comprises a concave curved surface of said blade portion, the upper and lower shells being fastened to each other, defining a first side of the mould and forming therebetween a first groove for forming a trailing edge of said third portion,
• a side shell which forms a second side of the mould, this second side being opposite to the first side and forming a second groove for forming a leading edge of said third portion, and
• first and second end shells located at two opposite ends of the mould and between which the lower, upper and side shells extend, these first and second end shells respectively forming at least one portion of said first and second portions,
• and in that each of the side and first and second end shells comprises three elements, respectively, including a lower shell element, an intermediate shell element and an upper shell element, the three elements of the side and first and second end shells being independently and removably fastened so as to be able to be dismounted and removed from the mould without dismounting the upper and lower shells,
• wherein the method comprises the steps of:
• a) mounting the preform in the cavity of the mold, said preform including the two platforms and the blade extending between the two platforms,
• b) closing the shaping device so as to compact the preform,
• c) stoving the shaping device in order to dry the preform, and
• d) dismounting the mould and removing the preform.