Tool tip for a machine tool

Details Tool tip for a machine tool Tool tip for a machine tool

1979-11-05

1982-04-06

Vlachos, Leonidas

Cutters, for shaping

Comprising tool of specific chemical composition

76101R, 501154, 501 73, 501 97, 501 98, B26D 100

Patent

active

043233236

ABSTRACT:
A cutting tool tip is formed at least at a cutting edge of the tip from a ceramic product consisting essentially of at least 75% by volume of a single phase compound having an expanded .beta.-phase silicon nitride lattice and having the general formula Si.sub.6-z Al.sub.z N.sub.8-z O.sub.z, where O<z.ltoreq.5, together with a second phase containing a metal from the list yttrium, lanthanum, cerium and scandium, or other rare earth metal.

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patent: 3991148 (1976-11-01), Lumby et al.
patent: 3991166 (1976-11-01), Jack et al.
patent: 3993844 (1976-11-01), Kiger et al.
patent: 4071371 (1978-01-01), Milberg et al.
patent: 4097293 (1978-06-01), Komeya et al.
patent: 4113503 (1978-09-01), Lumby et al.
patent: 4127416 (1978-11-01), Lumby et al.
patent: 4203690 (1980-05-01), Tanaka et al.
patent: 4227842 (1980-10-01), Samanta et al.

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