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METHOD FOR RAPID GENERATION OF MULTIPLE INVESTMENT CAST PARTS SUCH AS TURBINE OR COMPRESSOR WHEELS

  • US 20100006252A1
  • Filed: 06/24/2009
  • Published: 01/14/2010
  • Est. Priority Date: 07/09/2008
  • Status: Active Grant
First Claim
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1. A method for manufacturing two or more cast parts, comprising:

  • (i) using a rapid prototyping process to generate a “

    tree”

    of a sacrificial material, the tree comprising two or more male patterns of the parts joined by runners and/or sprues,(ii) forming a mold around the pattern,(iii) removing the sacrificial pattern from the mold,(iv) casting metal into the mold,(v) separating the mold from the casting, and(vi) separating the runners and sprues from the cast parts.

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