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Diffusion bonded and superplastically formed turbomachine blade

  • US 8,764,404 B2
  • Filed: 12/16/2011
  • Issued: 07/01/2014
  • Est. Priority Date: 12/23/2010
  • Status: Active Grant
First Claim
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1. A diffusion bonded and superplastically formed turbomachine blade, the turbomachine blade comprising:

  • a first layer;

    a second layer; and

    a membrane disposed between the first and second layers;

    wherein;

    the membrane is diffusion bonded to the first layer along a plurality of first strips and the membrane is diffusion bonded to the second layer along a plurality of second strips, wherein the first and second strips are offset from one another so that the membrane is bonded to the first and second layers in an alternating pattern; and

    the membrane has a recess which extends into an area between an adjacent pair of first or second strips.

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