Method for producing a one-piece composite structure and basin structure produced using this method
AssigneeLatecoere
InventorsPhilippe Gail, Herve Lajous
Life of this patent
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Abstract
Method for manufacturing a stiffened one-piece composite structure having a panel (2a) and at least one stiffener, which are produced by fiber lay-up, by infusion of resin in an infusion tool (1) that shapes the stiffened structure through the use and incorporates an autonomous heating device realized by inner heating resistors and a covering heating sheet (1i). After placing the infusion tool (1) under vacuum and setting the temperature thereof, the resin is infused into the fibers via the infusion media, prior to demolding of the infused structure followed by trimming.
Claims12
A method for manufacturing a stiffened one-piece composite structure, the composite structure having a panel (2a) and at least one stiffener, wherein the method comprises the following steps:
- fiber lay-up of the panel (2a) and of preforms of the stiffeners;
- introducing the panel (2a) and of preforms (3, 4) into an infusion tool (1) having an autonomous heating device;
- introducing shaping plates (1d, 1e) and bladders (1f);
- introducing an infusion media;
- incorporating infusion pipes (1h) into the bladders (1f);
- introducing a covering heating sheet (1i) to cover the structure, the covering heating sheet comprising at least one vent (1j);
- placing the infusion tool (1) under vacuum and setting a temperature;
- infusing a resin into the fibers via the infusion media, and demolding of the infused structure followed by trimming.
Dependencies are inferred from the claim text.