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US 11,965,430 B1Granted
Flared mandrel and process for effective use in transition regions
AssigneeRtx Corporation
InventorsKathryn S. Read, David J. Wasserman
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Abstract
A method of forming a vane preform includes braiding a sleeve from ceramic fibers, inserting a flared mandrel into the sleeve, the flared mandrel comprising a body region and at least one contoured region, manipulating the sleeve using the flared mandrel to form contours in the sleeve corresponding to the contoured region of the flared mandrel, and laying up at least one ceramic ply with the sleeve to form the vane preform.
Claims18
A method of forming a vane preform, the method comprising:
- braiding a sleeve from ceramic fibers;
- inserting a flared mandrel into the sleeve, the flared mandrel comprising a body region and at least one contoured region;
- manipulating the sleeve using the flared mandrel to form contours in the sleeve corresponding to the contoured region of the flared mandrel;
- and
- laying up at least one ceramic ply with the sleeve to form the vane preform.
2 more elements
A multi-piece flared mandrel suitable for shaping a portion of a vane preform, the flared mandrel comprising:
- a first mandrel portion comprising a first body region and a first contoured region;
- and
- a second mandrel portion comprising a second body region and a second contoured region,
- wherein the first mandrel portion is longitudinally aligned with the second mandrel portion;
- and
- wherein the mandrel is a wedge mandrel and a wedge is insertable between the first mandrel portion and the second mandrel portion.
3 more elements
Dependencies are inferred from the claim text.