Patent ID: 11897043
Assignee: KENNAMETAL INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 21:
22. A cutting tool assembly comprising:
a rotatable cutting tool holder having a longitudinal rotation axis and comprising a plurality of cutting insert pockets; and
a plurality of cutting inserts insertable into the cutting insert pockets, each cutting insert comprising:
a front face;
a rear face;
a plurality of side faces, wherein each side face extends between the front face and the rear face and comprises a side seating surface;
a cutting edge at an intersection of the front face and each side face, wherein each cutting edge comprises:
a facet cutting edge, and a straight angled lead cutting edge extending from the facet cutting edge at a lead cutting edge angle with respect to the facet cutting edge of from 5° to 40°,
and wherein each side face further comprises:
a side lead surface intersecting the straight angled lead cutting edge; and
a rear corner foot extending from the side lead surface defining a rear corner intersection line with the side lead surface, wherein the side seating surface comprises:
a forward seating surface boundary intersecting the side lead surface;
a rear seating surface boundary intersecting the rear face; and
a rear corner foot seating surface boundary intersecting the rear corner foot.