Process for forming a single piece co-cure composite wing
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-044/16
B29C-044/02
출원번호
US-0726970
(2003-12-03)
등록번호
US-7445744
(2008-11-04)
발명자
/ 주소
Simpson,Craig B.
Allman,Mike Glen
Tuttle,Steven Taylor
Ashton,Larry J.
출원인 / 주소
Rocky Mountain Composites, Inc.
대리인 / 주소
Metcalf,Craig
인용정보
피인용 횟수 :
4인용 특허 :
31
초록▼
A single piece co-cured composite wing is disclosed. The wing has a flying surface and structural members. In one embodiment the structural members may be a plurality of spars. The spars may have various shapes to increase the buckling strength. The spars may be wave shaped, such as a sinusoidal sha
A single piece co-cured composite wing is disclosed. The wing has a flying surface and structural members. In one embodiment the structural members may be a plurality of spars. The spars may have various shapes to increase the buckling strength. The spars may be wave shaped, such as a sinusoidal shape. The flying surface and the structural members are co-cured in order to form a single piece, integral wing structure. A process for manufacturing a single piece co-cured wing is also disclosed. The process may include laying out composite sheets for the flying surface of the wing. Then, the composite material of the spars is arranged around a plurality of pressurizable forms. Finally, the composite material is cured in a clamshell frame.
대표청구항▼
What is claimed and desired to be secured by United States Letters Patent is: 1. A process for forming a single-piece co-cured composite wing structure having a flying surface and at least one structural member, the process comprising: situating a first flying surface composite material in alignmen
What is claimed and desired to be secured by United States Letters Patent is: 1. A process for forming a single-piece co-cured composite wing structure having a flying surface and at least one structural member, the process comprising: situating a first flying surface composite material in alignment with a controlling surface of a first clamshell frame; aligning a plurality of forms to the first clamshell frame, wherein a composite material is positioned between selective forms, wherein the composite material positioned between selective forms creates a spar wherein the spar is comprised of two substantially C-shaped composite sections positioned in opposing orientations to form an I-beam, wherein selective forms each include a shrinkable core, and wherein selective forms are pressurizable; situating a second flying surface composite material between the plurality of forms and a controlling surface of a second clamshell frame; closing the first and second clamshell frames together; and curing the composite material. 2. The process, as recited in claim 1, wherein the spar is sinusoidal shaped. 3. The process, as recited in claim 1, wherein the forms are a foam core surrounded by a membrane. 4. The process, as recited in claim 3, wherein membrane of the selective pressurizable forms are capable of receiving a positive pressure during a curing process. 5. The process, as recited in claim 3, wherein the foam core shrinks during a curing process. 6. The process, as recited in claim 3, wherein shape of the foam core controls the shaping of the composite material. 7. The process, as recited in claim 1, wherein the selective pressurizable forms compress the first flying surface and the second flying surface against the controlling surfaces of the clamshell frames. 8. The process, as recited in claim 1, wherein the selective pressurizable forms compress against adjacent forms. 9. The process, as recited in claim 1, wherein the first flying surface and the second flying surface are part of a single sheet of composite material. 10. The apparatus, as recited in claim 1, wherein the wing structure is at least one of an ailerons, a wing tip, a horizontal stabilizer, a vertical stabilizer, a flap, an elevators and a canard. 11. The process, as recited in claim 1, further comprising applying a layer of primer to the controlling surface of the first clamshell frame and to the controlling surface of the second clamshell frame. 12. A process for forming a single-piece co-cured composite wing structure having a flying surface and at least one structural member, the process comprising: situating a first flying surface composite material in alignment with a controlling surface of a first clamshell frame; aligning a plurality of forms to the first clamshell frame, wherein a composite material is positioned between selective forms, wherein selective forms each include a core, and wherein selective forms are pressurizable; situating a second flying surface composite material between the plurality of forms and a controlling surface of a second clamshell frame; closing the first and second clamshell frames together; curing the composite material; and shrinking the core of selective forms. 13. A process for forming a single-piece co-cured composite wing structure having a flying surface and at least one structural member, the process comprising: situating a first flying surface composite material in alignment with a controlling surface of a first clamshell frame; aligning a plurality of forms to the first clamshell frame, wherein a composite material is positioned between selective forms, wherein selective forms each include a core and a membrane, and wherein selective forms are pressurizable; situating a second flying surface composite material between the plurality of forms and a controlling surface of a second clamshell frame; closing the first and second clamshell frames together; curing the composite material; expanding the membrane of selective forms; and shrinking the core of selective forms.
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