Cutting tool

Details Cutting tool Cutting tool

1986-06-16

1987-08-18

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Tool of specific diverse material

408230, 408713, 407 54, B23B 5102, B23C 518

Patent

active

046873872

ABSTRACT:
A cutting tool, a drill for instance, having a drill body and a cutting portion. The cutting portion comprises a central cutting insert and two peripheral cutting inserts. A cutting edge extends along the three inserts. The inserts comprise surfaces for facilitating a tight connection between the parts of the cutting edge. The peripheral inserts consist of a material of greater hardness than the material in the central insert, and therefore the cutting edge is adapted for the varying cutting speeds in the radial direction of the tool.

REFERENCES:
patent: 2858718 (1958-11-01), Kohler
patent: 3017790 (1962-01-01), Werle
patent: 4132493 (1979-01-01), Hosoi
patent: 4222690 (1980-09-01), Hosoi

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