System For improved flaw detection in polycrystalline diamond

Details System For improved flaw detection in polycrystalline diamond System For improved flaw detection in polycrystalline diamond

1987-01-29

1989-05-23

Derrington, James

Abrasive tool making process, material, or composition

With inorganic material

Metal or metal oxide

51307, 264 60, 264125, B29C 6700

Patent

active

048327085

ABSTRACT:
Disclosed is an improvement enabling a more reliable detection of flaws in polycrystalline diamond compacts by x-ray imaging and expecially for compacts used for wire drawing dies. In an embodiment, wire die compacts are prepared having a plycrystalline diamond core disposed within a metal carbide annulus. In the core are uniformly dispersed less than five (5) percent by weight particles such as tungsten carbide which initially have an average particle size substantially less than the diamond particles used to form polycrystalline mass.

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Taylor, "Diamond-Impregnated Carboloy", General Electric Review, vol. 67, No. 2, Feb., 1934.

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