公开(公告)号：EP4201563A1

公开(公告)日：2023-06-28

申请号：EP21858066.0

申请日：2021-07-08

申请人： Sumitomo Electric Hardmetal Corp. ,  Komatsu NTC Ltd. ,  Big Daishowa Seiki Co., Ltd.

发明人： FUKUDA, Hirochika ,  NISHIMURA, Takuya ,  KAKUI, Masanori ,  TSUJINO, Manabu ,  OGATA, Tatsuya

IPC分类号： B23C3/06 ,  B23C5/08 ,  B23C5/12 ,  B23C5/26 ,  B23C9/00

摘要： A cutting tool is rotatable about an axis line, and includes a main body portion, a cutting insert, and a plurality of anti-vibration members. The main body portion has an inner circumferential surface and an outer circumferential surface opposite to the inner circumferential surface. The cutting insert is attached to at least one of the inner circumferential surface and the outer circumferential surface. Each of the plurality of anti-vibration members is provided at the main body portion. Each of the plurality of anti-vibration members includes a weight member composed of a material having a specific gravity larger than a specific gravity of a material of the main body portion.