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Polycrystalline diamond compact cutter with improved cutting by preventing chip build up

  • US 6,196,910 B1
  • Filed: 08/10/1998
  • Issued: 03/06/2001
  • Est. Priority Date: 08/10/1998
  • Status: Expired due to Term
First Claim
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1. An abrasive compact comprising(a) layer having a first and second side, a cemented carbide substrate bonded to the second side and a cutting edge, and (b) the first side has a cutting surface including a substantially planar region and at least one non-planar region comprised of at least one raised hemispherical region, said non-planar region acts a chip breaker and increases turbulence across the cutting surface.

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