公开(公告)号：US09808871B2

公开(公告)日：2017-11-07

申请号：US14650489

申请日：2013-04-29

申请人： KORLOY INC.

发明人： Byung-Sun Choi ,  Sun-Kyoo Lee ,  Taeg-Won Lee ,  Dong-Ryong Ji ,  Dong-Bok Park

IPC分类号： B23C5/20 ,  B23C5/22

CPC分类号： B23C5/2213 ,  B23C5/202 ,  B23C5/207 ,  B23C5/2226 ,  B23C2200/0433 ,  B23C2200/0477 ,  B23C2200/085 ,  B23C2200/128 ,  B23C2200/367 ,  B23C2210/168 ,  B23C2210/66

摘要： The objective of the present invention is to provide a cutting insert which reduces cutting load and can be accurately positioned at a coupling part of a cutting tool even if cutting edges are broken or deformed. To this end, the cutting insert of the present invention includes an upper surface, a lower surface, a plurality of lateral surfaces connecting the upper surface with the lower surface, and a plurality of upper cutting edges formed between the plurality of lateral surfaces and the upper surface. In addition, the cutting insert coupled with the coupling part of the cutting tool includes: first and second upper cutting load reducing portions formed on the upper surface and provided at each side coming in contact with first and second upper cutting edges of the plurality of upper cutting edges facing each other so as to reduce the cutting load; and a one side position setting portion provided on a first lateral surface of the plurality of lateral surfaces not coming in contact with the first and second upper cutting edges so as to set the position of the cutting insert in the coupling part.