Back to results
US 11,453,073 B2Granted
Cutting insert and milling tool
AssigneeTungaloy Corporation
InventorYosuke Yamada
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeTungaloy Corporation
InventorYosuke Yamada
Estimating the term…
A cutting insert includes a first end surface and a second end surface, in which a first peripheral side surface includes a first rake surface adjacent to a first main cutting edge and a first concave surface connected to the second end surface and formed to be recessed from the first rake surface toward a central axis of a through hole, and the first concave surface has a first restraint surface provided at a position where a distance between the first restraint surface and a second main cutting edge is smaller than a distance between the central axis of the through hole and the second main cutting edge, when viewed from a direction parallel to the central axis of the through hole.
A cutting insert comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Characterised by the shape of the cutter: face-milling cutters, i.e. having only or primarily a substantially flat cutting surface
Shank-type cutters, i.e. with an integral shaft: with removable cutting inserts
For plate-like cutting inserts: having a special shape
Milling-cutters: characterised by the shape of the cutter
About 14 years 5 months of term left · ends 7 Apr 2041 (estimated)
This application relates to and claims priority from Japanese Patent Application No. 2019-190864 on (Oct. 18, 2019), the entire disclosure of which is incorporated herein by reference.
The present disclosure relates to a cutting insert and a milling tool.
In the related art, a cutting insert that can achieve both low resistance and high rigidity when vertically placed has been known.
FIG. 1 is a perspective view of a cutting insert when viewed from a first end surface side.
FIG. 2 is a perspective view of the cutting insert when viewed from a second end surface side.
FIG. 3 is a plan view of the cutting insert.
Embodiments of the present disclosure will be described below with reference to the drawings. The following embodiments are examples for explaining the present disclosure, and are not intended to limit the present disclosure only to the embodiments.
FIG. 1 is a perspective view of a cutting insert 10 according to the embodiment when viewed from a first end surface 12 side. FIG. 2 is a perspective view of the cutting insert 10 when viewed from a second end surface 14 side. Further, FIGS. 3 to 5 are a plan view, a left side view, and a rear view of the cutting insert 10, respectively.
The first end surface 12 of the cutting insert 10 has a surface functioning as flanks of a first main cutting edge 18A, a second main cutting edge 18B, and a third main cutting edge 18C. The first end surface 12 is formed, for example, in a triangular shape, and includes three corner portions corresponding to the vertices and three sides connecting the vertices. The second end surface 14 (FIG. 2) is formed in a direction opposite to the first end surface 12. Further, the cutting insert 10 is provided with a through hole H penetrating the center of the first end surface 12 and the center of the second end surface 14. A central axis AX (FIG. 3) of the through hole H is substantially perpendicular to the first end surface 12 and the second end surface 14.