Metal cutting tools utilizing gradient composites

Details Metal cutting tools utilizing gradient composites Metal cutting tools utilizing gradient composites

1980-09-10

1983-01-18

Pate, III, William F.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

76108A, 51307, E21B 1008

Patent

active

043687881

ABSTRACT:
A rolling cutter drill bit is disclosed having cutters manufactured by powder metallurgy techniques, said cutters having gradient composite metallic structures in the cutting areas arranged to reduce or eliminate physical and metallic discontinuities and stress risers.

REFERENCES:
patent: 3003370 (1961-10-01), Coulter, Jr.
patent: 3305923 (1967-02-01), Zimmer
patent: 4054449 (1977-10-01), Dunn et al.
patent: 4066422 (1978-01-01), Moer
patent: 4128136 (1978-12-01), Generoux
patent: 4164527 (1979-08-01), Bakul
patent: 4198233 (1980-04-01), Frehn
patent: 4274769 (1981-06-01), Multalch
patent: 4276788 (1981-07-01), Nederveen

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