Search International and National Patent Collections

1. (WO2018139585) ROTARY TOOL AND MANUFACTURING METHOD FOR CUT MACHINED WORKPIECES

Pub. No.:    WO/2018/139585    International Application No.:    PCT/JP2018/002504
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Sat Jan 27 00:59:59 CET 2018
IPC: B23B 51/00
B23C 5/10
B23D 77/00
Applicants: KYOCERA CORPORATION
京セラ株式会社
Inventors: OGAWA, Hiroshi
小川 浩
Title: ROTARY TOOL AND MANUFACTURING METHOD FOR CUT MACHINED WORKPIECES
Abstract:
One embodiment of a rotary tool has a main body that can rotate about a central axis and that is a rod shape extending from a first end to a second end. The main body comprises: a first cutting edge positioned on the first end; a first groove that extends from the first cutting edge toward the second end; a second cutting edge that is closer to the second end and to the outside than the first cutting edge and that is located away from the first cutting edge; and a second groove that extends from the second cutting edge toward the second end and that is located along the first groove. The second groove has a ridge that extends from the first end side toward the second end side.