Moulding tool for producing a composite material part using a flexible preform composed of a skin and profiled preforms firmly attached to said skin
US9248586B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Dec 28, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/3261
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a molding tool for producing a composite material part by coating, by means of a matrix, a flexible preform including a skin, and profiled elements delimiting a plurality of three-dimensional meshes of polyhedral shapes. This molding tool comprises a mold and a countermold made of a material having the same expansion coefficient as the preform. Furthermore, includes, for each three-dimensional mesh, a part for filling the latter, formed from a plurality of wedges (12-27) suitable for being interlocked and delimiting a free central volume (28, 29), and from a blocking part (40) suitable for ensuring a relative blocking of said blocking part and of the wedges (12-27), the wedges and blocking parts being produced from a material having an expansion coefficient suitable for obtaining a predetermined compaction of the preform for the polymerization temperature of the matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.