Method of making a unit comprising a casing and diverging portion
AssigneeSnecma Propulsion Solide
InventorsJoelle Lalande, Frederic Ballion
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Abstract
The invention relates to a method of making a casing-and-diverging-portion unit, the method comprising the following steps: forming fiber reinforcement from a first fiber preform made with a first type of fiber and a second fiber preform made with a second type of fiber different from the first type of fiber, said second preform being placed on the first preform; maintaining the fiber reinforcement in tooling so that it has a shape identical to the shape of the casing-and-diverging-portion unit that is to be made; and impregnating said fiber reinforcement with a thermosetting resin and impregnating the resin.
Claims18
A method of making a casing-and-diverging-portion unit, the method comprising the following steps:
- forming fiber reinforcement by making a first fiber preform with a first type of fiber, said first preform corresponding to the diverging portion of the casing-and-diverging-portion unit that is to be made, and making a second fiber preform with a second type of fiber, different from the first type of fiber, said second preform corresponding to the casing portion of the casing-and-diverging-portion unit that is to be made, and being placed on the first preform;
- maintaining the fiber reinforcement in a shape identical to that of the casing-and-diverging-portion unit that is to be made;
- and
- impregnating said fiber reinforcement with a thermosetting resin and polymerizing the resin.
Dependencies are inferred from the claim text.