Methods for making composite structures having composite-to-metal joints
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-065/00
B32B-003/06
B64C-001/12
B32B-007/12
B32B-037/02
B29C-070/86
B32B-015/01
B32B-003/14
B32B-003/18
B64C-001/06
C22C-014/00
B64C-003/26
B32B-015/08
B32B-015/20
B32B-027/20
B32B-027/38
B32B-001/00
B29C-065/82
B29C-065/48
B29L-031/30
B29K-703/06
출원번호
US-0510736
(2014-10-09)
등록번호
US-9522512
(2016-12-20)
발명자
/ 주소
Georgeson, Gary Ernest
Griess, Kenneth Harlan
출원인 / 주소
THE BOEING COMPANY
대리인 / 주소
Yee & Associates, P.C.
인용정보
피인용 횟수 :
3인용 특허 :
87
초록
A composite structure comprises stacked sets of laminated fiber reinforced resin plies and metal sheets. Edges of the resin plies and metal sheets are interleaved to form a composite-to-metal joint connecting the resin plies with the metal sheets.
대표청구항▼
1. A process for bonding a metal skin, without using a splice plate, to a composite skin, the composite skin comprising a first composite laminate and a second composite laminate, each composite laminate comprising a respective fiber comprising graphite; the process comprising: bonding the first com
1. A process for bonding a metal skin, without using a splice plate, to a composite skin, the composite skin comprising a first composite laminate and a second composite laminate, each composite laminate comprising a respective fiber comprising graphite; the process comprising: bonding the first composite laminate to a first end of a stack, the stack comprising metal sheets, and bonding the second composite laminate to a second end of the stack;forming the stack to a shape;connecting the first composite laminate to a top side of a frame of a structure; andconnecting the second composite laminate to a bottom side of the frame of the structure the stack comprising an outer sheet and an anti-icing process selected from at least one of:integrating a conductive section comprising a ductless heating element into at least one metal sheet in the stack, providing electromagnetic energy to the conductive section, the conductive section receiving electromagnetic energy and generating a surface temperature in the outer sheet, the surface temperature being sufficient for at least one of: preventing adhesion of ice on the outer sheet, and melting ice formed on the outer sheet; andintegrating a duct to the stack via an interior sheet to an inner sheet of the stack, the interior sheet preventing galvanic interaction with the composite laminate; receiving a flow of air; and directing the air such that a heat from the air holds the outer sheet of the stack at a temperature sufficient for at least one of: preventing adhesion of ice on the outer sheet, and melting ice formed on the outer sheet. 2. The process of claim 1, further comprising each metal sheet bonding to an adjacent metal sheet via an adhesive layer. 3. The process of claim 1, wherein bonding further comprises: interlacing each sheet in the stack with plies of at least one of: the first composite laminate, and the second composite laminate, in a finger lap joint such that each respective end of each metal sheet in the stack abuts four plies of the respective composite laminate. 4. The process of claim 1, wherein the stack comprises bonding an inner sheet, a middle sheet, and an outer sheet, each sheet comprising titanium, together via: a first adhesive layer between the inner sheet and the middle sheet, and a second adhesive layer between the middle sheet and the outer sheet. 5. The process of claim 1, further comprising: the first composite laminate, the stack, and the second composite laminate, forming a monolithic shell. 6. The process of claim 1, such that bonding reduces a first number of fasteners needed for connecting the metal skin to the frame relative to a process of connecting metal-to-composite requiring the splice plate and relative to a second number of fasteners needed in a wing comprising an all metal skin. 7. The process of claim 1, further comprising each metal sheet comprising a thickness of about 0.025 inches forming a waveguide for one-sided non-destructive testing. 8. The process of claim 1, further comprising increasing a load carrying capacity of the structure, relative to a splice skinned structure, by increasing a first height of a web in the frame, relative to a second height of a web in a frame of the splice skinned structure. 9. The process of claim 1, further comprising maintaining a load carrying capacity of the structure, relative to a splice skinned structure, while decreasing a weight of the structure relative to the splice skinned structure by bonding titanium sheets to composite plies to form a Ti-ply material. 10. The process of claim 1, wherein the metal skin and the composite skin are substantially flat. 11. The process of claim 1, wherein the metal skin and the composite skin are curved. 12. The process of claim 1, wherein the metal skin and the composite skin are joined by using a lap joint. 13. The process of claim 1, wherein the metal skin comprises titanium and the composite skin comprises a carbon fiber reinforced epoxy. 14. The process of claim 1, wherein the metal skin comprises aluminum and the composite skin comprises a carbon fiber reinforced epoxy. 15. The process of claim 1, wherein the metal skin comprises an aluminum alloy and the composite skin comprises a laminated stack of fiber reinforced resin plies. 16. The process of claim 1, wherein the process further comprises: staggering a composite-to-metal interface proximate a metal edge of the metal skin to form a nested splice. 17. The process of claim 16 further comprising: applying a metal adhesive between metal plies. 18. The process of claim 1 further comprising: staggering transition points between the metal sheets and the first composite laminate and the second composite laminate, wherein transition points are defined as interface locations between the metal sheets and the first composite laminate and the second composite laminate. 19. The process of claim 18 further comprising: spacing adjacent transition points in an in-plane direction of a structure formed by bonding the metal skin and the composite skin.
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