公开(公告)号：US20210370417A1

公开(公告)日：2021-12-02

申请号：US16757795

申请日：2018-10-02

申请人： KYOCERA Corporation

发明人： Hirohisa ISHI ,  Kento IWASAKI

IPC分类号： B23B51/04 ,  B23C5/28

摘要： A cutting tool may include a main body extended from a first end to a second end. The main body may be rotatable around a rotation axis. The main body may include a first cutting edge, a second cutting edge, a first flute and a second flute. The first flute may be extended from the first cutting edge toward the second end. The second flute may be extended from the second cutting edge toward the second end. The first flute may include a first hole located in the main body. The second flute may include a second hole located in the main body. The first hole may have a circular shape and the second hole may have a long narrow shape in a circumferential direction of the rotation axis in a cross section orthogonal to the rotation axis.

公开(公告)号：US20230219150A1

公开(公告)日：2023-07-13

申请号：US18000394

申请日：2021-05-27

申请人： KYOCERA CORPORATION

发明人： Hirokazu HATANO ,  Kento IWASAKI

IPC分类号： B23C5/10 ,  B23C5/22

CPC分类号： B23C5/10 ,  B23C5/22 ,  B23C2200/284 ,  B23C2210/02

摘要： A cutting insert in a non-limiting aspect of the present disclosure may include an upper surface having a polygonal shape and including a first side, a lower surface, and a lateral surface. The lateral surface may include a first lateral surface located between the first side and the lower surface. The first lateral surface may include a first region that is flat. The first region may include a first central region, a first upper region and a first lower region. The first upper region may be located closer to the upper surface than the first central region, and may have a larger width than the first central region. The first lower region may be located closer to the lower surface than the first central region, and may be a larger width than the first central region.