Cutting insert for a milling cutting tool
AssigneeIscar, Ltd.
InventorAmir Satran
Life of this patent
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Abstract
A cutting insert for use in a peripheral rotary milling cutter having a cylindrical holder and a plurality of replaceable, peripherally disposed cutting inserts, the cutting insert being formed with at least one cutting edge defined between a cutting rake surface and a relief flank surface of the insert. The cutting edge is curved and forms part of the curved side of a plane which intersects a cylinder constituting a surface of revolution of said cutting edge at an angle corresponding to the axial rake angle of the insert in the milling cutter.
Claims5
An insert for a peripheral rotary milling cutter having replaceable cutting inserts, each cutting insert having a cutting rake surface and replaceable cutting inserts, each cutting insert having a cutting rake surface and a relief flank surface and a curved cutting edge defined between the cutting rake surface and the relief flank surface, the radius of curvature of the cutting edge being given by the relationship ##EQU2## where r=radius of curvature of the cutting edge;
- l=length of a chord joining the ends of the curved cutting edge;
- D=Diameter of cylindrical envelope of the cutting edge;
- .alpha.=Axial rake angle.
Dependencies are inferred from the claim text.