Elliptical cutting insert for a milling cutting tool
AssigneeValenite Inc.
InventorsLee Reiterman, Paul R. Doxen, James D. Lark, II
Life of this patent
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Abstract
An insert for a peripheral rotary milling cutter having replaceable cutting inserts. Each cutting insert having a cutting rake surface and a relief flank surface and an elliptical cutting edge defined between the cutting rake surface and the relief flank surface.
Claims5
An insert for a peripheral rotary milling cutter having replaceable cutting inserts, each cutting insert having a cutting rake surface and a relief flank surface and an elliptical cutting edge defined between the cutting rake surface and the relief flank surface, the instantaneous radius of curvature of a point on the cutting edge being given by the relationship:
- ##EQU13## wherein:
- =the instantaneous radius of curvature of a point on the cutting edge
- D=the diameter of the cylindrical surface of revolution of the cutting edge about the rotary axis of the cutter
- .theta.=the axial rake angle
- x=in the ellipse defined by intersection of a plane inclined at the axial rake angle with the cylindrical surface of revolution, the length of a line from and normal to the semi-minor axis of said ellipse to any point on said ellipse.
Dependencies are inferred from the claim text.