[특허]Method to eliminate undulations in a composite panel

The Boeing Company

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Method to eliminate undulations in a composite panel

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-065/00
미국특허분류(USC)	156/286; 156/307.7; 244/131; 264/102
출원번호	US-0719219 (2003-11-21)
발명자 / 주소	Pham,Doan D. Lee,Michael A.
출원인 / 주소	The Boeing Company
대리인 / 주소	Shimokaji &
인용정보	피인용 횟수 : 8 인용 특허 : 12

초록

A method and article of manufacture of joining a stringer to a wing or tail panel and curing a wing or tail panel is disclosed. A sheet of titanium is placed between a cured stringer and an uncured wing or tail panel. The stringer, wing or tail panel and sheet are then placed within a vacuum bag, and gas is pumped out of the bag. The bag is then placed in an auto-clave to cure the wing or tail panel.

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The invention claimed is: 1. A method of curing comprising: providing a first object; providing a second object; placing a first side of a sheet adjacent to a malleable portion of said first object, wherein said sheet is rigid and substantially resists bending; placing a second side of said sheet adjacent to a non-malleable portion of said second object; placing said first object, second object and sheet into a container; removing gas from said container where bridging occurs; where said bridging extends from said second object to said sheet; and curing said malleable portion of said first object. 2. The method of claim 1 where said step of placing said first object, second object and sheet into a container comprises: placing a sheet having coefficient of thermal expansion less than 13.7횞10-6 inch/inch degree Fahrenheit per inch into said container, wherein said sheet is rigid and substantially resists bending. 3. The method of claim 1 where said step of removing gas from said container where bridging occurs comprises: attaching a pump to said container; removing gas from said container; and providing a pressure within said container between 25 inches of mercury to 29 inches of mercury. 4. The method of claim 1, further comprising: placing said container into an auto-clave; and providing a pressure between 45 pounds per square inch and 150 pounds per square inch on the outer surface of said container. 5. The method of claim 1, further comprising: placing said container into an auto-clave; and providing a temperature between 250 degrees Fahrenheit and 450 degrees Fahrenheit. 6. The method of claim 1, further comprising: positioning said sheet where said sheet extends between 0.25 inches to 0.50 inches from said second object. 7. A method of curing comprising: providing a first object having a malleable portion; providing a second object having a non-malleable portion; placing a first side of a sheet adjacent to said malleable portion of said first object, wherein said sheet is rigid and substantially resists bending; placing a second side of said sheet adjacent to said non-malleable portion of said second object; placing said first object, second object and sheet into a container; removing gas from said container where bridging occurs; where said bridging extends from said second object to said first object; and curing said malleable portion of said first object. 8. The method of claim 7 where said step of placing a first side of a sheet adjacent to said malleable portion of said first object comprises: placing a first side of a titanium sheet adjacent to said malleable portion of said first object. 9. The method of claim 8 where said step of placing a first side of a sheet adjacent to said malleable portion of said first object comprises: placing a first side of said sheet adjacent to an uncured stringer. 10. The method of claim 7, where said step of placing a second side of said sheet adjacent to said non-malleable portion of said second object comprises: placing a second side of said sheet adjacent to a stringer. 11. The method of claim 7, further comprising: placing said container into an auto-clave; and providing a temperature above ambient atmospheric temperature. 12. The method of claim 7 where said step of placing a second side of said sheet adjacent to said non-malleable portion of said second object comprises: positioning said sheet where said sheet extends between a quarter inch and a half inch from said second object. 13. The method of claim 7 where said step of placing a first side of a sheet adjacent to said malleable portion of said first object comprises: placing a sheet of titanium foil having a thickness between five thousandth of an inch and ten thousandth of an inch adjacent to an uncured wing panel. 14. A method of curing an object comprising: providing an object having a malleable portion; placing a first side of a sheet adjacent to said malleable portion of said object; coupling said sheet to said object by applying Sol-gel to said first side of said sheet and coupling said sheet to said object; placing said object and said sheet into a container; removing gas from said container where bridging occurs; where said sheet provides pressure to said malleable portion; and curing said malleable portion of said object. 15. A method of joining a stringer and a wing panel, and curing portions of said wing panel, comprising: providing said stringer; providing said wing panel; placing a first side of a sheet adjacent to an uncured portion of said wing panel, wherein said sheet substantially resists bending; placing a second side of said sheet adjacent to a cured portion of said stringer; placing said stringer, wing panel and sheet into a nylon bag; removing gas from said nylon bag where bridging occurs; and curing said uncured portion of said wing panel. 16. The method of claim 15, where said bridging extends from said stringer to said sheet. 17. The method of claim 15, where said bridging extends from said stringer to said wing panel. 18. A method of joining a stringer and a wing panel, and curing portions of said wing panel, comprising: providing said stringer; providing said wing panel; placing a first side of a sheet adjacent to an uncured portion of said wing panel, wherein said placing occurs by applying a film of Sol-gel between said first side of said sheet and said uncured portion of said wing panel and joining said sheet to said uncured portion of said wing panel; placing a second side of said sheet adjacent to a cured portion of said stringer; placing said stringer, wing panel and sheet into a nylon bag; removing gas from said nylon bag where bridging occurs; and curing said uncured portion of said wing panel. 19. The method of claim 15 where said step of placing said stringer, wing panel and sheet into a nylon bag comprises: applying breather material between said stringer and said nylon bag. 20. The method of claim 15 where said step of placing said stringer, wing panel and sheet into a nylon bag comprises: applying a release film between said stringer and said nylon bag. 21. A method of joining a stringer and a wing panel, and curing portions of said wing panel, comprising: providing said stringer; providing said wing panel; placing a first side of a sheet of titanium having a thickness between 0.005 inches and 0.010 inches, adjacent to an uncured portion of said wing panel; placing a second side of said sheet adjacent to a cured portion of said stringer; placing said stringer, wing panel and sheet into a nylon bag; removing gas from said nylon bag where bridging occurs; and curing said uncured portion of said wing panel.

이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 8

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특허 상세정보

Method to eliminate undulations in a composite panel

초록

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이 특허에 인용된 특허 (12)

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특허 상세정보

Method to eliminate undulations in a composite panel

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이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 8

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IPC 상세정보(version : 201201)

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