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method used in industrial processes to achieve a low void content for thermoset composites. Vacuum evacuation is the way reducing exciting amount of voids by physically transporting the voids out of the resin and fiber network through vacuum lines, and it is influenced by the viscosity of resin. Autoclave pressure is used to assist vacuum in removing trapped air and excess resin while at the same time preventing volatiles from coming out of the resin at high temperatures. Optimization of injection flow rate is often calculated to minimize voids

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