Holding tools for preform sintering
AssigneeSafran Ceramics
InventorsStéphane Roger André Goujard, Lucas Mathoux-Heuls, Thierry Guy Xavier Tesson, Christophe Paul Aupetit, Emilie Lesizza
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Abstract
An installation for sintering a preform includes a sintering furnace in which a load is disposed, wherein the load includes a revolution preform disposed around at least one holding tool, the at least one holding tool including a disk and a crown present on the periphery of the disk, the crown being made of compressible material capable of being eliminated by thermal oxidation, a portion of the preform being in contact with the crown before sintering.
Claims9
An installation for sintering a revolution preform comprising a sintering furnace wherein a load is disposed, wherein the load comprises a revolution preform disposed around at least one holding tool, the at least one holding tool comprising a disk and a crown present on a periphery of the disk, the crown being made of compressible material capable of being eliminated by thermal oxidation, a portion of the preform being in contact with the crown before sintering.
A method for manufacturing a composite material revolution part comprising:
- impregnating a fibrous preform of revolution at least by particles of one or more matrix precursors,
- placing the fibrous preform of revolution comprising the matrix precursor particles around at least one holding tool, the at least one holding tool comprising a disk and a crown present on a periphery of the disk, the crown being made of compressible material capable of being eliminated by thermal oxidation, a portion of the preform being in contact with the crown,
- sintering the fibrous preform comprising the matrix precursor particles in order to form a matrix in the porosities of said fibrous preform to obtain a composite material part, the majority of the compressible material of the crown being decomposed by oxidation at the end of the sintering,
- removing the at least one holding tool from the composite material part obtained.
Dependencies are inferred from the claim text.