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US 2024/0158307 A1Published application
Multi-stage consolidation process for ceramic matrix composite prepreg material
AssigneeROLLS-ROYCE plc
InventorsVirtudes Rubio Diaz, Matthew Hocking
Life of this patent
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Abstract
A method used for forming ceramic matrix composite components includes several steps. The method comprises arranging a layup of a predetermined number of prepreg ceramic plies on a layup too and a plurality of different stages to debulk and consolidate the layup.
Claims8
A method comprising:
- arranging a layup of a predetermined number of impregnated ceramic plies on a layup tool,
- performing a preliminary consolidation stage comprising:
- assembling a set of preliminary consolidation consumables over the layup,
- applying a vacuum pressure to withdrawn air between the set of preliminary consolidation consumables and the layup, and
- heating the layup to a first predetermined temperature for a predetermined preliminary consolidation period to partially cure the layup,
- performing a final consolidation stage comprising:
- assembling a set of final consolidation consumables over the layup once the set of preliminary consolidation consumables are removed from the layup, the set of final consolidation consumables having a lower flexibility and a higher temperature capability than the set of preliminary consolidation consumables,
- applying a vacuum pressure to withdrawn air between the set of final consolidation consumables and the layup, and
- heating the layup to a second predetermined temperature greater than the first predetermined temperature for a predetermined final consolidation period to fully cure the layup.
6 more elements
Dependencies are inferred from the claim text.