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US 10,245,766 B2Granted
Composite casing for axial turbomachine low-pressure compressor
AssigneeSafran Aero Boosters SA
InventorsBenoit Hannecart, Angela Durie
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AssigneeSafran Aero Boosters SA
InventorsBenoit Hannecart, Angela Durie
Estimating the term…
The invention relates to a method for manufacturing a composite casing for an axial turbomachine low-pressure compressor. The casing comprises a circular wall and a fixing flange which with the wall forms a sharp-edged corner. The method comprises the steps of: supplying a mold with a corner configured to form the edge corner of the casing; placing a filled thermoplastic resin profile section along the corner; placing a fibrous reinforcement in the mold to hug the profile section; closing the injection mold; polymerizing a resin injected into the mold and demolding the casing. The invention also relates to a composite casing with an annular wall and a flange at one end of the wall forming a sharp-edged corner on the inside of the casing. The casing is reinforced by a fibrous perform and the edge corner is reinforced with short fibers with a mean length of less than 5.00 mm.
A method for manufacturing a composite casing of a turbomachine, the casing comprising an arcuate wall, a fixing flange extending radially from one edge of the wall and forming with the wall a sharp-edged corner, said method comprising:
Dependencies are inferred from the claim text.