Cutting insert and cutting tool
AssigneeKennametal Inc.
InventorKonrad Spitzenberger
Life of this patent
Estimating the term…
Abstract
The invention relates to a cutting insert having a polygonal upper side. Cutting edges, which are alternately configured as roughing cutting edges and finishing cutting edges, are provided at the edges of the upper side. The finishing cutting edges define an incircle (K1) having a diameter that is enlarged in comparison to a nominal size of the cutting insert, and the roughing cutting edges define an incircle (K2) having a diameter that is reduced in comparison to the nominal size of the cutting insert. The invention further relates to a cutting tool having a tool body on which at least one such cutting insert is disposed.
Claims15
A cutting insert comprising:
- a polygonal upper side and a polygonal lower side, wherein the upper side and the lower side are congruent when viewed along a center axis of the cutting insert,
- with a number of lateral surfaces which corresponds to the number of corners of the upper side, wherein each of the lateral surfaces connects an edge of the upper side to an edge of the lower side that is adjacent along the center axis of the cutting insert,
- with a number of cutting edges which corresponds to the number of corners of the upper side, wherein the cutting edges are provided on the edges of the upper side and are alternately configured as roughing cutting edges and finishing cutting edges, and wherein
- the lateral surfaces are continuous along the center axis of the cutting insert, and
- the finishing cutting edges define an incircle (K1) having a diameter that is enlarged in comparison to a nominal size of the cutting insert, and the roughing cutting edges define an incircle (K2) having a diameter that is reduced in comparison to the nominal size of the cutting insert.
Dependencies are inferred from the claim text.