Cutting insert with chip control

Details Cutting insert with chip control Cutting insert with chip control

1986-04-07

1988-04-05

Silverberg, Fred

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

B26D 100

Patent

active

RE0326364

ABSTRACT:
A cutting tool for improved material removal efficiency at relatively high feed rates is disclosed. In a preferred form of an indexable polygonal cutting insert, an edge land and chip contacting ramp surfaces in at least a top face of the insert are advantageously arranged for reduced cutting forces and friction, ample cutting edge strength and inducement of free chip flow. In order to overcome deleterious chip convergence and resultant high pressures in the vicinity of the nose radius of the cutting corner of the insert, a recessed control surface is positioned in each corner portion of the polygonal insert.

REFERENCES:
patent: 4288179 (1981-09-01), Kruger et al.
patent: 4340324 (1982-07-01), McCreery
patent: 4367990 (1983-01-01), Porat et al.
patent: 4507024 (1985-03-01), Stashko

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