Cutting tool with detachable insert, head member and tool body of the same

Abstract

In a head member (30) for a cutting tool with detachable insert (70) including a head member body (31) formed with an insert attachment seat (36) to which a cutting insert (50) having cutting blades (52) is detachably attached, and constituting the cutting tool with detachable insert (70) by being mounted to a tip portion of a holder (10), a side surface (31A) of the head member body (31) is formed with a recess (44) which has a continuous inner wall surface therearound and a bottom surface connected to the inner wall surface over its whole periphery and which is recessed from the side surface (31A) without passing though the head member body (31). According to this head member (30), generation of chatter vibration can be suppressed even if the amount of protrusion is increased, and the cutting heat of a cutting insert can be efficiently radiated.

Dependencies are inferred from the claim text.