B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/12 (2006.01) B29D 99/00 (2010.01) B31D 1/00 (2006.01) B32B 18/00 (2006.01) E04C 2/36 (2006.01) B29D 31/00 (2006.01) B32B 31/12 (1995.01)
Patent
CA 2096864
A method of manufacturing a honeycomb structure of thermostructural composite material comprising a fiber reinforcing fabric densified by a matrix, the fibers of the reinforcing fabric being of a material selected from carbon and ceramics, as is the matrix, the method comprising the following steps: making a three-dimensional fiber fabric by means of superimposed two- dimensional plies that are bonded together by means of fibers passing through the plies; making slit-shaped cuts in a staggered configuration through the plies, and through the entire thickness of the fabric; stretching the cut fabric in a direction that is not parallel to the cuts but that is parallel to the plies so as to form cells whose walls are constituted by the lips of the cuts; and while the cut texture is held in the stretched state, densifying it using the matrix-constituting material to obtain a rigid honeycomb structure of thermostructural material.
Delage Andre
Georges Jean-Michel
Maumus Jean-Pierre
Sim & Mcburney
Societe Nationale D'etude Et de Construction de Moteurs D'aviati
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