Composite structure and method for inspecting a pre-bond surface of a composite structure
AssigneeThe Boeing Company
InventorsPeter J. Van Voast, Marcus A. Belcher
Life of this patent
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Abstract
A method for preparing a pre-bond surface of a composite structure includes the steps of: (1) separating a peel ply, co-cured with a composite substrate, from the composite substrate; and (2) transferring an identifiable marking agent from the peel ply to the composite substrate upon separation of the peel ply from the composite substrate. Residue of the peel ply, transferred from the peel ply to the composite substrate upon separation of the peel ply from the composite substrate, is layered on the identifiable marking agent.
Claims20
A method for inspecting a pre-bond surface of a composite structure, said method comprising:
- placing onto a composite substrate surface of a composite substrate a peel ply comprising a peel ply surface, said peel ply surface comprising an identifiable marking agent, said composite substrate comprising a resin, wherein said peel ply surface is in contact with said composite substrate surface;
- co-curing said peel ply and said composite substrate;
- removing said peel ply from said composite substrate to form a modified surface of said composite substrate;
- and
- inspecting said composite substrate to determine whether said identifiable marking agent transferred to said modified surface,
- wherein said identifiable marking agent is evidence of residue transferred from said peel ply to said composite substrate.
A method for preparing a pre-bond surface of a composite structure, said method comprising:
- separating a peel ply, co-cured with a composite substrate, from said composite substrate, wherein said composite substrate comprises a resin;
- and
- transferring residue and an identifiable marking agent from said peel ply to said composite substrate upon separation of said peel ply from said composite substrate,
- wherein said residue of said peel ply, transferred from said peel ply to said composite substrate upon separation of said peel ply from said composite substrate, is layered on said identifiable marking agent.
Dependencies are inferred from the claim text.