Invention Grant
- Patent Title: Process development protocol and vacuum bag process for carbon-epoxy prepreg production
- Patent Title (中): 碳环氧预浸料生产过程开发协议和真空袋工艺
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Application No.: US12797901Application Date: 2010-06-10
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Publication No.: US07935200B1Publication Date: 2011-05-03
- Inventor: Russell L. Keller , John F. Spalding
- Applicant: Russell L. Keller , John F. Spalding
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agent Felix L. Fischer
- Main IPC: B32B41/00
- IPC: B32B41/00

Abstract:
A protocol for determining process parameters for debulking composite laminates is established using a standardized double vacuum debulk (DVD) process. This allows for the development of a rapid fabrication process for thick laminates of toughened carbon/epoxy composite materials. The protocol provides for obtaining cure and current consolidation information of a composite material system as a preliminary baseline. A test matrix is prepared for varying time/temp profiles to pursue better results or find process limits and the testing defined by the matrix is run with variations of time/temp DVD profiles to confirm data values. Results for the process variations in the test matrix are then assessed. An optimum consolidation is determined and process points are defined at which quality drops off. The protocol results are then applied to part preparation for the material tested.
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