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Method for producing parts by infiltration of porous intermediate parts

  • US 5,616,294 A
  • Filed: 06/07/1995
  • Issued: 04/01/1997
  • Est. Priority Date: 10/17/1986
  • Status: Expired due to Fees
First Claim
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1. A method of producing a part from a powder, comprising the steps of:

  • depositing a first layer of the powder at a target surface;

    directing energy at selected locations of said first layer of powder corresponding to a first cross-section of the part to fuse the powder thereat;

    depositing a second layer of powder over said first layer of powder after said directing step;

    directing energy at selected locations of said second layer of powder corresponding to a second cross-section of the part to fuse the powder thereat, and so that fused powder at one of said selected locations of said second layer of powder fuses to fused powder in said first layer;

    repeating said depositing and directing steps to form a porous intermediate part in layerwise fashion; and

    infiltrating the porous intermediate part with an epoxy to produce the part.

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