Cutting insert for a rotary cutting tool

Details Cutting insert for a rotary cutting tool Cutting insert for a rotary cutting tool

1993-05-27

1994-04-05

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Drill

76DIG12, 51293, B21K 502

Patent

active

052994716

ABSTRACT:
A cutting insert for a rotary cutting tool comprises a body of tungsten carbide, with layers of polycrystalline diamond on opposite sides of the body. The diamond layers overlap across the centre-line of the insert. The cutting insert is shaped for retention at the end of the rotary cutting tool so that the first and second sides of the cutting insert are substantially parallel to the axis of the cutting tool, and the diamond layers are offset from one another across the width of the body so that they define the lips or major cutting edges of the cutting tool.

REFERENCES:
patent: 3369283 (1968-02-01), Colding
patent: 4696352 (1987-09-01), Buljan et al.
patent: 5065647 (1991-11-01), Johnson

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