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1. (WO2018221300) CUTTING INSERT, CUTTING TOOL PROVIDED WITH SAME, AND METHOD FOR MANUFACTURING CUT WORKPIECE

Pub. No.:    WO/2018/221300    International Application No.:    PCT/JP2018/019535
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 22 01:59:59 CEST 2018
IPC: B23B 27/14
Applicants: KYOCERA CORPORATION
京セラ株式会社
Inventors: GONZUI, Hirotoshi
権隨 佑知
Title: CUTTING INSERT, CUTTING TOOL PROVIDED WITH SAME, AND METHOD FOR MANUFACTURING CUT WORKPIECE
Abstract:
A cutting insert according to one embodiment of the present invention has a first surface, a second surface positioned on the opposite side to the first surface, a third surface positioned between the first surface and the second surface, and a cutting blade positioned on at least part of a ridgeline where the first surface and the third surface meet. The first surface comprises a first region that is inclined so as to get nearer to the second surface as the distance from the cutting blade increases. When, viewing the first surface from the front, a first virtual line orthogonal to the cutting blade has been set, Rz1a is greater than Rz1b, where Rz1a is the ten-point average roughness of the first region in the direction along the first virtual line, and Rz1b is the ten-point average roughness of the first region in the direction along the cutting blade.