Turning tool cutting insert and turning tool
AssigneeSandvik Intelectual Property AB
InventorRonnie LOF
Life of this patent
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Abstract
A turning tool cutting insert having an insert face with a rake face includes a primary land extending along a first cutting edge. The primary land includes a first primary land portion adjacent a linear edge portion, and a second primary land portion adjacent a central portion of the corner edge portion. The first primary land portion differs from the second primary land portion. A transitional primary land portion adjoins the first primary land portion and the second primary land portion, and forms a transition between the first primary land portion and the second primary land portion. The transitional primary land portion is arranged only adjacent an outer portion of the corner edge portion. Further, a turning tool including a turning tool cutting insert is disclosed.
Claims15
A turning tool cutting insert comprising an insert body, including at least a first cutting edge, the first cutting edge extending along an intersection between a relief face and a rake face of the insert body, wherein the first cutting edge includes a convex corner edge portion and a straight linear edge portion, the corner edge portion adjoining the linear edge portion, and wherein the rake face includes a primary land extending along the first cutting edge, the primary land having a first primary land portion adjacent the linear edge portion and a second primary land portion adjacent a central portion of the corner edge portion, and wherein the first primary land portion differs from the second primary land portion, the primary land having a transitional primary land portion adjoining the first primary land portion and the second primary land portion and forming a transition between the first primary land portion and the second primary land portion, wherein the transitional primary land portion is arranged only adjacent an outer portion of the corner edge portion, the outer portion adjoining the central portion of the corner edge portion.
A turning tool comprising:
- a tool body, the tool body having a longitudinal axis extending in a direction from an attachment portion of the tool body towards a distal end portion of the tool body, wherein the tool body is provided with a recess arranged to receive a cutting insert at the distal end portion, the recess being shaped such that a cutting insert positioned in the recess points an engaging corner edge portion of a first cutting edge thereof in a direction sidewardly of the longitudinal axis;
- and
- a turning tool cutting insert arranged in the recess, the cutting insert including an insert body having at least a first cutting edge, the first cutting edge extending along an intersection between a relief face and a rake face of the insert body, wherein the first cutting edge includes a convex corner edge portion and a straight linear edge portion, the corner edge portion adjoining the linear edge portion, and wherein the rake face includes a primary land extending along the first cutting edge, the primary land having a first primary land portion adjacent the linear edge portion and a second primary land portion adjacent a central portion of the corner edge portion, and wherein the first primary land portion differs from the second primary land portion, the primary land having a transitional primary land portion adjoining the first primary land portion and the second primary land portion and forming a transition between the first primary land portion and the second primary land portion, wherein the transitional primary land portion is arranged only adjacent an outer portion of the corner edge portion, the outer portion adjoining the central portion of the corner edge portion.
Dependencies are inferred from the claim text.