Polygonal cutting bit

Details Polygonal cutting bit Polygonal cutting bit

1982-09-30

1984-12-11

Vlachos, Leonidas

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

B26D 100

Patent

active

044875347

ABSTRACT:
In order to reliably shape and remove the cut chip under different cutting conditions a polygonal cutting bit is proposed for cutting tools having raised chip forming elements wherein the chip forming elements are given essentially the shape of a pyramid frustum. Advantageously the pyramid frustum forming the chip forming element has a triangular shape with concavely extending side faces and/or rounded corners. The chip forming elements are possibly disposed in chip forming grooves which again are of a concave or stepped design and are at least in part face ground and no higher than the cover face of the cutting bit.

REFERENCES:
patent: 3395434 (1968-08-01), Wirfelt
patent: 3792514 (1974-02-01), Ushijima
patent: 3815192 (1974-06-01), Ohtsuka
patent: 4189265 (1980-02-01), Arnold et al.
patent: 4214845 (1980-07-01), Mori
patent: 4359300 (1982-11-01), Hazra et al.

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