CUTTING INSERT AND TURNING TOOL

Abstract: provided is a cutting insert or the like that is capable of copy machining in a narrow space and is also highly economical. a cutting insert () has a first end portion () and a second end portion () formed in substantially the same shape. a cutting edge () of the first end portion () includes a curved corner cutting edge () and a pair of lateral cutting edges ( and ) disposed such that both ends (l and r) of the corner cutting edge () are sandwiched therebetween. the pair of lateral cutting edges ( and ) are formed linearly and form an acute angle (y). a side surface () has a corner flank () continuous with the corner cutting edge () and a flat surface () disposed further toward a bottom surface () than the corner flank () at a portion () abutting on the corner cutting edge ().

Inventor(s): Shunsuke MIYAZAWA

CPC Classification: B23B27/04 (TURNING; BORING (arrangements for copying or controlling ))

Search for rejections for patent application number 20250187078