Method for forming inner mold line tooling without a part model

  • US 5,876,546 A
  • Filed: 09/25/1997
  • Issued: 03/02/1999
  • Est. Priority Date: 09/25/1997
  • Status: Expired due to Fees
First Claim
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1. A method of forming a caul plate for aligning against the inner mold line of a composite part, comprising:

  • laying-up a first uncured composite material on a lay-up mandrel, the first uncured composite material having a first primary curing temperature;

    extending a nonporous film over an inner mold line of the first uncured composite material;

    arranging a second composite material over the nonporous film so as to form an assembly, the second composite material having a second primary curing temperature that is lower than the first primary curing temperature; and

    curing the assembly at a curing temperature that is at least as high as the second primary curing temperature but is less than the first primary curing temperature such that the second composite material is made substantially rigid, whereby the cured, second composite material can be used as a caul plate for the inner mold line of the first uncured composite material.

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