US 11,890,686 B2
Milling insert and a side and face milling tool
Linda Stefansson, Sandviken (SE); and Ulrik Sunnvius, Gavle (SE)
Assigned to Sandvik Intellectual Property AB, Sandviken (SE)
Filed by SANDVIK INTELLECTUAL PROPERTY AB, Sandviken (SE)
Filed on Feb. 21, 2023, as Appl. No. 18/112,333.
Application 18/112,333 is a continuation of application No. 16/642,709, filed on Feb. 27, 2020, granted, now 11,612,942.
Prior Publication US 2023/0191508 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B23C 5/10 (2006.01); B23C 5/20 (2006.01)
CPC B23C 5/1072 (2013.01) [B23C 5/202 (2013.01); B23C 2200/0494 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A milling insert for a side and face milling tool, comprising:
an upper side having a rake surface and defining an upper extension plane;
a lower side opposite the upper side, the lower side defining a lower extension plane , wherein a center axis extends perpendicularly through the upper and lower extension planes;
a side surface extending between the upper side and the lower side around a periphery of the milling insert, wherein the side surface includes a main radial clearance surface, two opposite secondary axial clearance surfaces, and two corner clearance surfaces extending between the main radial clearance surface and the secondary axial clearance surfaces; and
at least one cutting edge formed in a transition between the upper side and the side surface, wherein each cutting edge includes a main cutting edge formed in a transition between the rake surface and the main radial clearance surface and two corner cutting edges formed in a transition between the rake surface and the corner clearance surfaces, wherein the main cutting edge, as seen in a side view of the milling insert, slopes downward from the corner cutting edges toward a midpoint of the main cutting edge, and wherein the main cutting edge, as well as the main radial clearance surface, as seen in a top view of the milling insert, both slope outward from the corner cutting edges toward the midpoint of the main cutting edge, wherein a shape of the main cutting edge as seen in the top view and a shape of at least an upper portion of the main radial clearance surface as seen in an arbitrary section perpendicular to the center axis are identical or essentially identical.