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US 2007/0175535 A1Published application
Orthogonal weaving for complex shape preforms
AssigneeGeneral Electric Company
InventorsTimothy KOSTAR, Douglas CARPER, Suresh SUBRAMANIAN
Life of this patent
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Abstract
An orthogonal stitch-weave method and fiber architecture. The architecture allows near-net-shape composite preforms to be fabricated, thereby reducing costs associated with complex preform shapes and increasing desired strengths of the composite.
Claims10
A woven ceramic matrix composite preform for making a finished ceramic matrix composite shape comprising:
- a predetermined number weft tows;
- a predetermined number of stitcher tows;
- and
- a predetermined number of warp tows;
- wherein the weft tows, the stitcher tows and the warp tows are arranged in an orthogonal weave;
- wherein the orthogonal weave forms a preform of a shape substantially the same as the shape of the finished ceramic matrix composite shape;
- and
- wherein the weft tows, stitcher tows and the warp tows include a plurality of individual fibers comprising silicon carbide.
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A woven ceramic matrix composite preform for making a finished ceramic matrix composite shape comprising:
- a predetermined number weft tows;
- a predetermined number of stitcher tows;
- and
- a predetermined number of warp tows;
- wherein the weft tows, the stitcher tows and the warp tows are arranged in an orthogonal weave;
- wherein the orthogonal weave forms a preform of a shape substantially the same as the shape of the finished ceramic matrix composite shape;
- and
- wherein the preform shape is an airfoil component for a gas turbine engine.
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Dependencies are inferred from the claim text.