Wrinkle reduction in uncured composite laminates

摘要

Wrinkles are removed from fiber reinforced resin plies of an uncured composite layup by subjecting the wrinkles to vibration and pressure.

主权项

1. A method of reducing a wrinkle in a fiber reinforced impregnated resin ply, comprising:
forming a layup comprising said ply, the layup defining a surface; and subjecting the wrinkle to vibrations while applying downward pressure relative to the surface following forming said layup and prior to compacting and curing said layup, said vibrations having a frequency of at least 15,000 Hz and an amplitude of at least 0.0005 inches applied with a flat face head and the vibrations being normal to the surface.