Cutting insert with curved cutting edge

Details Cutting insert with curved cutting edge Cutting insert with curved cutting edge

2005-10-25

2005-10-25

Fridie, Jr., Willmon (Department: 3722)

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

C407S114000

Reexamination Certificate

active

06957935

ABSTRACT:
A cutting insert for a milling machining adapted to be mounted on a milling cutter to carry out cutting operation and having primary and secondary cutting edges provided at sides of a rectangular body, each primary cutting edge having a curved line tangential to the adjacent secondary cutting edge, to reduce the cutting force and improve flatness of the side surface of a machined workpiece. The cutting insert includes an upper face, a bottom face and a plurality of side faces connecting the upper face and the bottom face. The primary cutting edge has chip breakers for guiding chip flow, primary cutting edge land faces and primary cutting edge clearance faces. The primary cutting edges enable a bottom surface and a side surface of a machined workpiece to have a right angle therebetween.

REFERENCES:
patent: 5447396 (1995-09-01), Pantzar
patent: 5544984 (1996-08-01), Pantzar
patent: 5597271 (1997-01-01), Men et al.
patent: 5951214 (1999-09-01), Rothballer et al.
patent: 6186705 (2001-02-01), Kumar et al.
patent: 6-226523 (1994-08-01), None
patent: 94-2876 (1994-02-01), None
patent: 95-17026 (1995-07-01), None
patent: 96-555 (1996-01-01), None

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