Grinding tool

Details Grinding tool Grinding tool

1993-01-14

1995-03-21

Rachuba, Maurina T.

Abrading

Rigid tool

51293, 51309, 451546, 451544, 451548, 451552, B24D 300

Patent

active

053984552

ABSTRACT:
A hafnium nitride coating is applied over the cubic boron nitride layer of conventional CBN tools by the process of arc physical-vapor-deposition at temperatures below the tempering temperature of the core metal. The hafnium nitride coating protects the cubic boron nitride or diamond abrasive and the core, resulting in a grinding tool with greater strength and longer life.

REFERENCES:
patent: 4266449 (1981-05-01), Bielby
patent: 4394170 (1983-07-01), Sawaoka et al.
patent: 4797138 (1989-01-01), Komanduri
patent: 4919974 (1990-04-01), McCune et al.
patent: 4951427 (1990-08-01), St. Pierre
patent: 5075181 (1991-12-01), Quinto et al.
patent: 5106392 (1992-04-01), Slutz et al.
patent: 5139537 (1992-08-01), Julien
patent: 5141901 (1992-08-01), Brandt
patent: 5211726 (1993-05-01), Slutz et al.
patent: 5231060 (1993-07-01), Brandt

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