A method for vacuum assisted resin transfer molding a composite structure
including fibers at least partially surrounded by resin using a mold
including a tool having a surface shaped to correspond to the composite
structure and an inflatable bladder for forcing the composite structure
against the tool. A resin inlet is connected to a resin source for
introducing resin into a mold cavity at least partially defined by the
tool surface and the bladder and a vacuum port spaced from the resin
inlet. The method includes the steps of opening the mold cavity, loading
fibers into the open mold cavity, closing the loaded mold cavity,
introducing resin through the resin inlet into the closed mold cavity
loaded with fibers, and pulling a vacuum at the resin inlet and the
vacuum port to draw excess resin from the structure prior to curing
thereof.