Sumitomo Electric Hardmetal Corp.

Aisin Fukui Corporation

Daichi Yamaguchi

Junya Okida

Hideo Maeno

A cutting insert includes a first surface, a second surface, and an outer peripheral side surface. A ridgeline between the first surface and the outer peripheral side surface forms a first ridgeline. A ridgeline between the second surface and the outer peripheral side surface forms a second ridgeline. The first ridgeline includes a first straight portion, a first wiper edge, a first corner cutting edge, and a second straight portion. The second ridgeline includes a third straight portion, a second wiper edge, a second corner cutting edge, and a fourth straight portion. The outer peripheral side surface includes a first wiper flank surface, a first corner flank surface, a second wiper flank surface, a second corner flank surface, a first plane, and a second plane. The first plane is contiguous to each of the first corner flank surface and the second wiper flank surface.

Growing community of inventors

Echizen, Japan

Daichi Yamaguchi