US 12,134,134 B2
Cutting insert
Kouki Matsubara, Itami (JP); Tomoyuki Fukuyama, Itami (JP); Shota Takemura, Itami (JP); Shota Tsujimoto, Itami (JP); and Naoki Matsuda, Itami (JP)
Assigned to SUMITOMO ELECTRIC HARDMETAL CORP., Itami (JP)
Appl. No. 17/442,614
Filed by Sumitomo Electric Hardmetal Corp., Itami (JP)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/013034
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/196526, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-060278 (JP), filed on Mar. 27, 2019.
Prior Publication US 2022/0168820 A1, Jun. 2, 2022
Int. Cl. B23B 27/16 (2006.01)
CPC B23B 27/1611 (2013.01) [B23C 2200/125 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cutting insert mountable on a body, the cutting insert comprising:
a top surface;
a bottom surface opposite to the top surface;
a side surface contiguous to the top surface and the bottom surface; and
a cutting edge formed at a ridgeline between the top surface and the side surface, wherein
the side surface has a first surface disposed adjacent to the cutting edge and a second surface contiguous to the first surface,
when viewed in a cross sectional view parallel to the bottom surface, the second surface has a first position and a second position that are brought into abutment with the body when mounted on the body,
between the first position and the second position, an imaginary straight line extending through the first position and the second position is separated from the second surface, and
when viewed from a side of the top surface in a cross sectional view which is parallel to the bottom surface and includes a boundary between the first surface and the second surface, the boundary between the first surface and the second surface forms a straight line.