Patent ID: 6689448
Filing Date: 2004-02-10
Classification: B29C,B29D,B32B,Y10T

Abstract:
A method for using a radius filler in a radius gap to provide at least one of the following elements: to improve absolute strength, to improve specific strength, to reduce cracking, to reduce cost, or to reduce distortion and variability in a composite assembly, comprising the steps of:(a) positioning the radius filler, having a laminate of debulked plies of fabric reinforced composite substantially the shape of the radius gap that the radius filler fills and having at least one ply oriented at +45Â° and another ply oriented at âˆ’45Â° relative to the longitudinal axis of the radius filler, in the radius gap in a composite assembly, the radius filler also having a resin that is uncured or partially cured; and (b) completing the curing of the radius filler to complete the composite assembly.