B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 3/10 (2006.01) B22F 7/06 (2006.01) B24D 3/06 (2006.01)
Patent
CA 2070328
ABSTRACT A composite diamond abrasive compact comprises a diamond compact bonded to a cemented carbide support along a compact/carbide interface and is characterised by the carbide support comprising at least two zones, a first zone containing a binder metal content of a predetermined amount, and a second zone extending from the interface to the first zone and having a binder metal content which is substantially lower than that of the first zone. The second zone has a depth or thickness of no more than 0,75mm. The binder metal content of the second zone increases from the interface to the first zone in a continuous, non-interrupted manner.
Lloyd Andrew Ian
Martell Trevor John
Olmstead Bruce Ringsby
Tank Klaus
Tomlinson Peter Noel
de Beers Industrial Diamond Division (proprietary) Limited
Gowling Lafleur Henderson Llp
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