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1. (WO2017150608) CUTTING INSERT AND CUTTING TOOL

Pub. No.:    WO/2017/150608    International Application No.:    PCT/JP2017/008102
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: B23C 5/20
B23B 27/14
B23C 5/06
Applicants: SUMITOMO ELECTRIC HARDMETAL CORP.
住友電工ハードメタル株式会社
Inventors: MORISAKI, Yuta
森崎 優太
Title: CUTTING INSERT AND CUTTING TOOL
Abstract:
A cutting insert, provided with a body having a first surface, a second surface, and a third surface. The second surface is continuous with the first surface and extends in a direction intersecting the first surface. The third surface is continuous with the first surface and the second surface. A fixing hole is formed in the first surface. The second surface includes a rake surface. Of the outer periphery of the second surface, the boundary with the first surface is a main cutting blade. The main cutting blade when viewed from the first surface side includes a first linear part, a second linear part, and a curved part. The first linear part is located nearer to a reference side. The second linear part is disposed at a distance from the first linear part. The curved part connects the first linear part and the second linear part. A first intersection angle of the first linear part with respect to the reference side differs from a second intersection angle of the second linear part with respect to the reference side.