IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0153301
(2002-05-22)
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등록번호 |
US-7374715
(2008-05-20)
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발명자
/ 주소 |
- Husmann,Christopher H.
- Sheu,Chi H.
- Shimazu,Denise M.
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출원인 / 주소 |
- Northrop Grumman Corporation
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
26 |
초록
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According to one embodiment of the invention, a co-cured resin transfer molding manufacturing method includes providing a tool having one or more tooling details and disposing one or more preforms proximate the one or more tooling details. The one or more preforms are either dry or binderized. The m
According to one embodiment of the invention, a co-cured resin transfer molding manufacturing method includes providing a tool having one or more tooling details and disposing one or more preforms proximate the one or more tooling details. The one or more preforms are either dry or binderized. The method further includes disposing a high permeability medium outwardly from the one or more tooling details, disposing a prepreg skin panel outwardly from the high permeability medium, disposing the one or more tooling details and the prepreg skin panel within the tool, injecting a resin into the one or more preforms, and curing the one or more preforms and the prepreg skin panel.
대표청구항
▼
What is claimed is: 1. A co-cured resin transfer molding manufacturing method, comprising: providing a tool having one or more tooling details; disposing a high permeability medium outwardly from the one or more tooling details: disposing one or more preforms proximate the one or more tooling detai
What is claimed is: 1. A co-cured resin transfer molding manufacturing method, comprising: providing a tool having one or more tooling details; disposing a high permeability medium outwardly from the one or more tooling details: disposing one or more preforms proximate the one or more tooling details, the one or more preforms being either dry or binderized; disposing a prepreg skin panel outwardly from the high permeability medium; disposing the one or more tooling details and the prepreg skin panel within the tool; injecting a resin into the one or more preforms; and curing the one or more preforms and the prepreg skin panel. 2. The method of claim 1, further comprising removing the high permeability medium after curing the one or more preforms and the prepreg skin panel. 3. The method of claim 1, further comprising coupling the prepreg skin panel and the one or more preforms with a plurality of fasteners. 4. The method of claim 3, wherein coupling the prepreg skin panel and the one or more preforms with the fasteners comprises coupling the prepreg skin panel and the one or more preforms with a plurality of Z-pins. 5. The method of claim 1, further comprising disposing an adhesive between one or more preforms and the prepreg skin panel. 6. The method of claim 1, wherein the one or more preforms are selected from the group consisting of a fabric preform, a stitched preform, a warp knit preform, a 3D preform, and a braided preform. 7. The method of claim 1, further comprising vacuum debulking the prepreg skin panel. 8. The method of claim 7, wherein vacuum debulking the prepreg skin panel comprises vacuum debulking the prepreg skin panel at room temperature for a predetermined time and then vacuum debulking the prepreg skin panel at an elevated temperature for a predetermined time. 9. The method of claim 1, further comprising staging the prepreg skin panel. 10. The method of claim 1, wherein the prepreg skin panel is selected from the group consisting of a hand laid prepreg skin panel, a tape laid prepreg skin panel, a fiber placed prepreg skin panel, and a woven prepreg skin panel. 11. The method of claim 1, wherein disposing the prepreg skin panel comprises disposing a prepreg skin panel formed with a bismaleimide resin. 12. The method of claim 1, wherein injecting the resin into the one or more preforms comprises injecting a bismaleimide resin into the one or more preforms. 13. The method of claim 1, further comprising disposing a release fabric between the high permeability medium and the prepreg skin panel. 14. A co-cured resin transfer molding manufacturing method, comprising: providing a tool having one or more tooling details; disposing a high permeability medium outwardly from the one or more tooling details; disposing one or more preforms proximate the one or more tooling details, the one or more preforms being either dry or binderized; disposing a prepreg skin panel outwardly from the high permeability medium; disposing the one or more tooling details and the prepreg skin panel within the tool; injecting a resin into the one or more preforms, wherein injecting the resin into the one or more preforms comprises: pulling a vacuum on the tools, heating the tool to a first predetermined temperatures, heating the resin to a second predetermined temperature, vacuum degassing the resin, pressurizing the resin to a predetermined pressure, and injecting the resin; and curing the one or more preforms and the prepreg skin panel. 15. The method of claim 14, wherein the first predetermined temperature is greater than the second predetermined temperature. 16. The method of claim 14, wherein curing the one or more preforms and the prepreg skin panel comprises: heating the tool to a third temperature that is greater than the first predetermined temperature and the second predetermined temperature; and holding the tool at approximately the third temperature for a first time period. 17. The method of claim 16, further comprising heating the tool to a fourth temperature that is greater than the third temperature and holding the tool at approximately the fourth temperature for a second time period. 18. A co-cured resin transfer molding manufacturing method, comprising: providing a prepreg skin panel; processing the prepreg skin panel, the processing selected from the group consisting of vacuum debulking and staging; providing a tool having a base plate, a top plate, a containment ring, and one or more tooling details; disposing a high permeability medium outwardly from the one or more tooling details; disposing a release fabric outwardly from the high permeability medium; disposing one or more preforms proximate the one or more tooling details, the one or more preforms being either dry or binderized; disposing the prepreg skin panel outwardly from the release fabric; disposing the one or more tooling details proximate the base plate: disposing the prepreg skin panel proximate the top plate; disposing the containment ring between the base plate and the top plate; injecting a resin into the one or more preforms; and curing the one or more preforms and the prepreg skin panel. 19. The method of claim 18, further comprising coupling the prepreg skin panel and the one or more preforms with a plurality of Z-pins. 20. The method of claim 18, further comprising disposing an adhesive between one or more preforms and the prepreg skin panel. 21. The method of claim 18, wherein the one or more preforms are selected from the group consisting of a fabric preform, a stitched preform, a warp knit preform, a 3D preform, and a braided preform. 22. The method of claim 18, further comprising vacuum debulking the prepreg skin panel at an elevated temperature for a predetermined time. 23. The method of claim 18, wherein the prepreg skin panel is selected from the group consisting of a hand laid prepreg skin panel, a tape laid prepreg skin panel, a fiber placed prepreg skin panel, and a woven prepreg skin panel. 24. The method of claim 18, wherein disposing the prepreg skin panel comprises disposing a prepreg skin panel formed with a bismaleimide resin. 25. The method of claim 18, wherein injecting the resin into the one or more preforms comprises injecting a bismaleimide resin into the one or more preforms. 26. The method of claim 18, wherein injecting the resin into the one or more preforms comprises: heating the tool to a first predetermined temperature; heating the resin to a second predetermined temperature, the second predetermined temperature less than the first predetermined temperature; vacuum degassing the resin; pulling a vacuum on the tool; pressurizing the resin to a predetermined pressure; and injecting the resin. 27. The method of claim 18, post-curing the one or more preforms and the prepreg skin panel at an elevated temperature for a predetermined time period. 28. A co-cured resin transfer molding manufacturing method, comprising: providing a prepreg skin panel formed with a bismaleimide resin; vacuum debulking the prepreg skin panel at room temperature; vacuum debulking the prepreg skin panel at an elevated temperature for a predetermined time period; providing a tool having a base plate, a top plate, a containment ring, and one or more tooling details; disposing a high permeability medium outwardly from the one or more tooling details; disposing a release fabric outwardly from the high permeability medium; disposing one or more preforms proximate the one or more tooling details, the one or more preforms being either dry or binderized; disposing the prepreg skin panel outwardly from the release fabric; disposing the one or more tooling details proximate the base plate; disposing the prepreg skin panel proximate the top plate; disposing the containment ring between the base plate and the top plate; injecting a bismaleimide resin into the one or more preforms; and curing the one or more preforms and the prepreg skin panel. 29. The method of claim 28, further comprising coupling the prepreg skin panel and the one or more preforms with a plurality of Z-pins. 30. The method of claim 28, further comprising disposing an adhesive between one or more preforms and the prepreg skin panel. 31. The method of claim 28, wherein the one or more preforms are selected from the group consisting of a fabric preform, a stitched preform, a warp knit preform, a 3D preform, and a braided preform. 32. The method of claim 28, wherein the prepreg skin panel is selected from the group consisting of a hand laid prepreg skin panel, a tape laid prepreg skin panel, a fiber placed prepreg skin panel, and a woven prepreg skin panel. 33. The method of claim 28, further comprising loading the tool in a press and applying pressure to the tool before injecting the bismaleimide resin. 34. The method of claim 28, wherein injecting the bismaleimide resin into the one or more preforms comprises: pulling a vacuum on the tool; heating the tool to a temperature of approximately 250�� F; heating the resin to a temperature of approximately 250�� F; vacuum degassing the resin; pressurizing the resin to a pressure of at least 15 psi; and injecting the bismaleimide resin. 35. The method of claim 28, post-curing the one or more preforms and the prepreg skin panel at a temperature of approximately 440�� F. for a time period of approximately six hours.
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