Tool for cutting solid material

Details Tool for cutting solid material Tool for cutting solid material

1990-04-24

1991-12-24

Bagnell, David J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

51309, 175409, 428698, E21C 3518, B32B 1504

Patent

active

050746235

ABSTRACT:
The present invention relates to a tool for cutting solid material, the tool including a tool body having a supporting surface, and a cutting insert having a generally conical tip portion and a shoulder portion that is intended to rest against a supporting surface, the cutting insert being secured to the tool body, e.g., by brazing. The invention also relates to the cutting insert per se. The cutting insert has a concave portion between its tip and bottom which concave portion extends circumferentially around the cutting insert. In addition, a special type of cemented carbide is used for the cutting insert.

REFERENCES:
patent: 4743515 (1988-05-01), Fischer et al.
patent: 4820482 (1989-04-01), Fischer et al.
patent: 4843039 (1989-06-01), Akesson et al.
patent: 4859543 (1989-08-01), Greenfield et al.
patent: 4911503 (1990-03-01), Stiffler et al.
patent: 4938538 (1990-07-01), Larsson et al.

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