Ceramic cutting tool

Details Ceramic cutting tool Ceramic cutting tool

1990-04-11

1991-05-21

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501127, C04B 3510, C04B 3556, C04B 3558

Patent

active

050175246

ABSTRACT:
A composition for a ceramic cutting tool which enjoys long tool life at high speed machining of ferrous alloys. The composition consists essentially of 60-80% alpha aluminum oxide (Al.sub.2 O.sub.3) having a hexagonal crystal structure and the remainder of titanium carbonitride (TiCN). The titanium carbonitride has a mixture of 30-70% titanium carbide and the remainder titanium nitride. The mixture is compacted and hot pressed, sintered or pressure sintered to form the tool.

REFERENCES:
patent: 4320203 (1982-03-01), Brandt et al.
patent: 4366254 (1982-12-01), Rich et al.
patent: 4526875 (1985-07-01), Yamamoto et al.
patent: 4543343 (1985-09-01), Iyori et al.
patent: 4598053 (1986-07-01), Yamakawa et al.
patent: 4746563 (1988-05-01), Nakano et al.

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