Invention Publication
- Patent Title: ROTARY CUTTING TOOL
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Application No.: US17913383Application Date: 2021-02-03
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Publication No.: US20230147380A1Publication Date: 2023-05-11
- Inventor: Takeshi KAWABATA , Shuichi KAWANO
- Applicant: A.L.M.T. Corp.
- Applicant Address: JP Tokyo
- Assignee: A.L.M.T. Corp.
- Current Assignee: A.L.M.T. Corp.
- Current Assignee Address: JP Tokyo
- Priority: JP 20050718 2020.03.23
- International Application: PCT/JP2021/003855 2021.02.03
- Date entered country: 2022-09-21
- Main IPC: B23B27/20
- IPC: B23B27/20 ; B23D77/02 ; B23B51/00

Abstract:
A rotary cutting tool includes a tool body and a cutting edge tip provided at the tool body. At least one first groove is provided in a rake face of the cutting edge tip, the first groove has a portion inclined with respect to a rotation axis, and a front end of the first groove is provided at a front cutting edge. A rear end of the first groove is provided on an inner side with respect to an outer peripheral cutting edge, and an irregularity of the outer peripheral cutting edge is 30 μm or less.
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