US 11,717,895 B2
Cutting insert and cutting tool assembly including same
Chang Hee Choi, Daegu (KR); and Chang Won Jeong, Daegu (KR)
Assigned to TaeguTec Ltd., Daegu (KR)
Filed by TAEGUTEC LTD., Daegu (KR)
Filed on May 21, 2021, as Appl. No. 17/327,149.
Prior Publication US 2022/0371101 A1, Nov. 24, 2022
Int. Cl. B23B 27/16 (2006.01)
CPC B23B 27/1622 (2013.01) [B23B 2200/16 (2013.01); B23B 2200/165 (2013.01); B23B 2205/12 (2013.01); B23B 2205/16 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A cutting insert supported by a mounting portion when mounted on a cutting tool, comprising:
an upper surface;
a lower surface;
a plurality of side surfaces extending between the upper surface and the lower surface;
an insert hole extending through the upper surface and the lower surface; and
a corner portion provided with a cutting edge,
wherein:
at least one of the upper surface and the lower surface has a plurality of recesses extending between the insert hole and the corner portion,
the plurality of recesses includes a first recess into which a first portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion, and a second recess into which a second portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion,
the second recess has a side wall spaced apart from the second portion of the mounting portion; and
the first recess makes contact with the mounting portion at two points, and the second recess has a bottom surface making contact with the mounting portion.