METHODS FOR FABRICATING STABILIZED HONEYCOMB CORE COMPOSITE LAMINATE STRUCTURES

摘要

Processes for fabricating a honeycomb core composite laminate structure are provided. The processes include subjecting a honeycomb core preform having a honeycomb core and a stabilizing layer of at least one ply of a resin-impregnated fiber reinforced matrix material (“prepreg material”) surrounding the honeycomb core to high temperature curing under an ambient atmospheric pressure condition. A final laminate layer formed of at least one ply of prepreg material may thereafter be laid up onto the stabilized preform to thereby provide a final product preform which is then subjected to high temperature and high pressure autoclave curing conditions sufficient to cure the final laminate layer and provide a final cured honeycomb core composite laminate structure.

主权项

1. A process for fabricating a honeycomb core composite laminate structure comprising:
(a) providing a honeycomb core preform comprised of a honeycomb core and a stabilizing layer comprised of at least one ply of a resin-impregnated fiber reinforced matrix material surrounding the honeycomb core; (b) subjecting the honeycomb core preform to high temperature curing under an ambient atmospheric pressure condition sufficient to cure the stabilizing layer to thereby obtain a stabilized honeycomb core preform; (c) laying up a final laminate layer comprised of at least one ply of an additional resin-impregnated fiber-reinforced matrix material onto the stabilized honeycomb core preform to thereby provide a final product preform; and (d) subjecting the final product preform to high temperature and high pressure autoclave curing conditions sufficient to cure the final laminate layer and provide a final cured honeycomb core composite laminate structure.