Polycrystalline diamond compact cutter with reduced failure duri

Details Polycrystalline diamond compact cutter with reduced failure duri Polycrystalline diamond compact cutter with reduced failure duri

1997-11-20

2000-03-28

Eley, Timothy V.

Abrading

Rigid tool

51309, 451548, B23F 2103

Patent

active

06042463&

ABSTRACT:
A supported polycrystalline compact (PC) cutter made under high temperature, high pressure (HT/HP) processing conditions having non-planar interfaces between the PC layer and a cemented carbide support layer. The carbide PC interface geometry is such that one or more protrusions extend from the support layer into the PC layer. The protrusions have a low cobalt metal binder content of about 3-9% by weight. The low cobalt metal binder content in the protrusions results in enhanced performance and improved resistance to cracking during installation and/or to brazing breakage.

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