Cutting tool.

摘要

A throw away cutting tool comprising a holder (1) formed with a wedge groove (2) and a throw away insert (10) having a cutting edge (11) at one end thereof and a wedge portion (12) at the other end, the wedge portion being adapted to be clamped in the wedge groove (2) by elasticity of the material of the holder (1). The holder is at least partly made of cemented carbide for higher rigidity and cutting stability. Also, the radius of curvature at the deep end of the wedge groove (2) is optimized for crack resistance. Further, the angle of the V-ridge on the holder (1) is interrelated to the angle of the V-groove in the insert (10) for more holding stability and crack resistance.