Fabrication of brazable in air tool inserts

Details Fabrication of brazable in air tool inserts Fabrication of brazable in air tool inserts

1994-12-07

1997-05-06

King, Roy V.

Coating processes

Coating by vapor, gas, or smoke

Metal coating

4272557, 4273831, 427399, 427405, 51309, 407119, C23C 1600, B05D 302

Patent

active

056269099

ABSTRACT:
Tool inserts are produced that can be brazed in air at temperatures as low as 700.degree. C. The tool compact, such as a polycrystalline diamond compact or a cubic boron nitride compact, has a multilayer coating comprising a metal bonding layer and a protective layer. Once coated with the bonding layer and the protective layer, the tool insert can be air brazed to a tool support in a manufacturing environment using a standard braze without a vacuum furnace or special atmosphere. A method for manufacturing the tool insert is also disclosed.

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