Take a typical hand lay-up for making composites one step further with vacuum bagging. Once layers of reinforcement and resin are laid-up by hand, the laminate is sealed in an air-tight environment, like a vacuum bag, and connected to a vacuum source. Vacuum is applied, creating mechanical pressure on the laminate throughout the cure cycle.
The advantages of vacuum bagging over traditional methods?
Mechanical pressure compacts the laminate, removing air, humidity, and excess resin, which can all compromise the curing process and the performance of the finished part.
This compaction improves the fiber-to-resin ratio, which is the key to maximizing the strength-to-weight advantages of any composite.
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