Multi-Stage Debulk and Compaction of Thick Composite Repair Laminates

摘要

A method for fabricating a repair laminate for a composite part having an exposed surface includes applying a release film to the exposed surface and forming an uncured ply stack assembly on the release film. The uncured ply stack assembly is formed by forming and compacting a series of uncured ply stacks. The release film and ply stack assembly is then removed from the exposed surface. A bonding material is then applied to the exposed surface, and the uncured ply stack assembly is applied to the bonding material. The ply stack assembly and bonding material are then cured.

主权项

1. A method for fabricating a laminate for a composite part, comprising:
preparing a lay-up tool for fabricating the composite part thereon; applying a release film to the lay-up tool; forming an uncured ply stack assembly that consists of a plurality of uncured ply stacks, the forming of the uncured ply stack assembly including, for each uncured ply stack:
forming the uncured ply stack over the lay-up tool, the ply stack being applied so as to substantially conform to the contouring of the lay-up tool, the uncured ply stack consisting of a plurality of uncured plies; andapplying a vacuum and heat below a curing temperature to the thus formed uncured ply stack prior to forming another uncured ply stack over the lay-up tool;wherein a first-formed ply stack is applied to contact the release film and the release film contacts the lay-up tool; andwherein each subsequently-formed ply stack is applied to a previously-formed ply stack; and curing the uncured ply stack assembly; wherein the first ply stack is compacted prior to the subsequent ply stack being applied and subsequently compacted.