Indexable cutter insert

Details Indexable cutter insert Indexable cutter insert

1988-03-04

1989-05-30

Schmidt, Frederick R.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

407114, B23C 502

Patent

active

048345911

ABSTRACT:
An indexable cutter insert for a rotary cutter includes a plate defined by a front face, a rear face generally parallel to said front face and plural pairs of first and second side faces disposed alternately and lying between the front and rear faces. Each side face extends generally perpendicular to the front and rear faces. Each first side face is longer than each second side face and is generally arcuately convex as viewed in a direction perpendicular to the front face while each second side face is generally planar. The plate has a plurality of generally arcuate convex front cutting edges each defined by the intersection of a respective one of the first side faces with the front face and a plurality of generally arcuate convex rear cutting edges each defined by the intersection of a respective one of the first side faces with the rear face. A front marginal surface portion of the front face disposed adjacent to and extending along each second side face is convexly curved so as to slope toward the rear face toward the second side face while a rear marginal surface portion of the rear face disposed adjacent to and extending along each second side face is convexly curved so as to slope toward the front face toward the second side face.

REFERENCES:
patent: 4132493 (1979-01-01), Hosoi
patent: 4411564 (1983-10-01), Johnson
patent: 4512689 (1985-04-01), Bylund
patent: 4556345 (1985-12-01), Philippi
patent: 4566827 (1986-01-01), Neumueller
patent: 4618296 (1986-10-01), Allaire et al.
patent: 4693641 (1987-09-01), Tsujimura et al.
patent: 4699549 (1987-10-01), Shimomura et al.
patent: 4714383 (1987-12-01), Shimomura et al.

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