Supported thermally stable cubic boron nitride tool blanks and m

Details Supported thermally stable cubic boron nitride tool blanks and m Supported thermally stable cubic boron nitride tool blanks and m

1989-08-15

1991-01-15

Dixon, Jr., William R.

Abrasive tool making process, material, or composition

Miscellaneous

51309, B24D 300

Patent

active

049850504

ABSTRACT:
A method for making supported, thermally stable cubic boron nitride (CBN) or wurtzitic boron nitride (WBN) compacts or wire dies comprising providing a mass of sinterable CBN and WBN particles substantially free of catalytic material and a metal bonded support mass or annulus; positioning a barrier layer between said CBN or WBN mass and said support mass; and subjecting such arrangement of materials to pressure and temperature conditions for a time effective for sintering said CBN or WBN particles and substantially preventing migration of metal bond material into the CBN or WBN mass.

REFERENCES:
patent: 3744982 (1973-07-01), Bovenkerk et al.
patent: 4505721 (1985-03-01), Almond et al.
patent: 4673414 (1987-06-01), Lavens et al.
patent: 4690691 (1987-09-01), Komandeiri
patent: 4807402 (1989-02-01), Rai
patent: 4828582 (1989-05-01), Frushour

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