B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
57/2
B23P 15/28 (2006.01) B22F 7/06 (2006.01) B23B 27/14 (2006.01) B23P 5/00 (2006.01) E21B 10/56 (2006.01)
Patent
CA 1331520
A B S T R A C T A tool insert comprising an abrasive compact bonded to a cemented carbide support . The cutting edge of the tool is provided by the periphery of the compact. A plurality of recesses, each filled with abrasive compact material, extend into the cemented carbide support from the compact/carbide interface. The recesses are arranged in a series of rows, with each recess being staggered relative to its nearest neighbour in an adjacent row. In use, wear of the compact cutting edge occurs and eventually wears down to the carbide/compact interface. Thereafter, the carbide between adjacent recesses wears quicker than the diamond compact material which is located in each recess creating, in effect, a plurality of cutting ridges or projections.
579765
Bereskin & Parr
de Beers Industrial Diamond Division (proprietary)
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