发明名称 |
PROCEDE DE FABRICATION DE PIECES STRUCTURALES COMPLEXES MONOBLOC EN MATERIAU COMPOSITE |
摘要 |
A fibrous preform is made using only a flexible basic fibrous structure in the form of a planar plate consisting of a stack of two-dimensional fibrous layers joined together by needle punching. Cut-outs and/or slots are made in the basic fibrous structure and the preform is made by bending the cut and/or slotted basic fibrous structure. A structural member is provided by densifying the preform with a constituent material of the composite material matrix. A single plate with a fibrous structure bent into shape by means of the slots or cut-outs may be used to achieve the desired preform in which the continuity of the basic fibrous structure is retained. Alternatively, a plurality of plates with a basic fibrous structure may be assembled by bending one or more of the plates and assembling them so that they interlock by means of the slots or cut-outs. |
申请公布号 |
FR2732984(A1) |
申请公布日期 |
1996.10.18 |
申请号 |
FR19950004449 |
申请日期 |
1995.04.13 |
申请人 |
SOCIETE EUROPEENNE DE PROPULSION |
发明人 |
MAUMUS JEAN PIERRE;MARTIN GUY |
分类号 |
B29B11/16;B29C53/02;B29C67/00;B29C70/54;B29D12/00;D04H1/00;D04H1/4209;D04H1/4242;D04H1/498;D04H1/52;D04H18/00 |
主分类号 |
B29B11/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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