Cutter insert

Details Cutter insert Cutter insert

1985-04-18

1986-10-14

Husar, Francis S.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

407114, B23B 2722, B26D 100, B23C 520

Patent

active

046169628

ABSTRACT:
An indexable cutter insert for a rotary cutter includes a generally polygonal plate defined by a front face, a rear face and a plurality of side faces. The corner portions of the plate where adjacent side faces intersect one another are removed to provide respective corner faces. The plate has a plurality of main cutting edges each defined by the front face and a respective one of the side faces and a plurality of auxiliary cutting edges each defined by the front face and a respective one of the corner faces. Each side face serves as a relief surface of a respective one of the main cutting edges. A forward portion of each corner face remote from the rear face serves as a relief surface of a respective one of the auxiliary cutting edges. A rearward portion of each corner face remote from the front face is offset inwardly from the forward portion to provide a clearance surface. The clearance surface extends from the rear face to a plane generally centrally of the thickness of the plate.

REFERENCES:
patent: 3940835 (1976-03-01), Friedline et al.
patent: 3955259 (1976-05-01), Gustafsson

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