US 6,475,320 B1Granted

Method of fabricating composite material wing

AssigneeFuji Jukogyo Kabushiki Kaisha

InventorKyoichi Masugi

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Abstract

Reinforcing textile sheets (10, 11, 12, 16, 17) are superposed on mandrels (9, 14 and 15). The reinforcing textile sheets superposed on the mandrels are placed in a closed jig (2, 3). A thermosetting resin is introduced into the closed jig to impregnate the superposed reinforcing textile sheets. The thermosetting resin impregnated into the superposed reinforcing textile sheets is made to half-set in the closed jig to form a half-set composite material wing component member including a rear spar, ribs, an upper skin and a lower skin. The half-set composite material wing component member is taken out of the jig and the mandrel is removed from the half-set composite material wing component member. The half-set composite material wing component member and a half-set front spar are bonded together with an adhesive to form a half-set wing structure. The half-set wing structure is subjected to a high-temperature setting process to set the wing structure and the adhesive simultaneously.

Claims2

Dependent claims

A method of fabricating a composite material wing including a front spar, a rear spar, a plurality of ribs extended between the front and the rear spar, an upper skin overlying the ribs and a lower skin underlying the ribs, said method comprising the steps of:

superposing a plurality of reinforcing textile sheets for the rear spar, the ribs, the upper skin and the lower skin on separate mandrels corresponding to a wing structure;
enclosing the reinforcing textile sheets superposed on the separate mandrels in a closed jig;
impregnating the reinforcing textile sheets with a thermosetting resin by introducing the thermosetting resin into the closed jig;
making the thermosetting resin impregnated into the superposed reinforcing textile sheets half-set to form a half-set composite material wing component member;
taking the half-set composite material wing component member and the separate mandrels out of the closed jig;
removing the separate mandrels from the half-set composite material wing component member integrally including the rear spar, the ribs, the upper skin and the lower skin;
bonding the half-set composite material wing component member and a wing component member corresponding to the front spar with an adhesive to form an assembly;
and
heat-setting the assembly to complete a composite material wing.

6 more elements

Dependencies are inferred from the claim text.