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Matrix powder for matrix body fixed cutter bits

  • US 8,211,203 B2
  • Filed: 08/12/2008
  • Issued: 07/03/2012
  • Est. Priority Date: 04/18/2008
  • Status: Active Grant
First Claim
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1. A matrix powder for forming a matrix bit body, the matrix powder consisting essentially of:

  • a plurality of tungsten carbide particles having a particle size distribution of ±

    20% or less of a median particle size; and

    a plurality of metal binder particles;

    wherein the plurality of carbide particles comprise at least one of cast tungsten carbide, cemented tungsten carbide, or macrocrystalline tungsten carbide and the mean particle size of the plurality of carbide particles ranges from 50 to 840 microns.

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