Vacuum Bagging is a technique that uses vacuum pressure on a composite laminate during the cure cycle. Pressurizing a composite lamination serves several functions. First, it removes trapped air between layers. Second, it compacts the fiber layers for efficient force transmission among fiber bundles and prevents shifting of fiber orientation during cure. Third, it reduces humidity. Finally, and most important, the vacuum bagging technique optimizes the fiber-to-resin ratio in the composite part. Vacuum Infusion is a fabrication technique that uses vacuum pressure to drive resin into a laminate.
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