Composite cutting element containing cubic boron nitride and met

Details Composite cutting element containing cubic boron nitride and met Composite cutting element containing cubic boron nitride and met

1989-07-07

1990-03-06

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428555, 428557, 428457, 428627, 428698, 419 6, 419 12, 419 14, 419 38, 75244, 51307, B22F 706

Patent

active

049065289

ABSTRACT:
A cutting element of flat shape suitable for use as a drill tip comprises a central abrading blade containing more than 80% vol. CBN sandwiched between two lateral support layers. The lateral layers consist of a refractory metal or alloy selected from the group consisiting of tungsten, titanium and alloys thereof. The compact may particularly have a roof or pentagonal shape. An intermediate transition film may be located between the refractory metal or alloy and the CBN blade.

REFERENCES:
patent: 4647546 (1987-03-01), Hall, Jr. et al.
patent: 4764434 (1988-08-01), Avonsson et al.
patent: 4766040 (1988-08-01), Hillert et al.
patent: 4797326 (1989-01-01), Csillag

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