| abstract |
A cutting insert (420, 422, 424) has a cutting insert body (430, 530, 630) containing a central aperture (444, 544,644), as Well as having a seating surface (434, 436, 534, 536, 634, 636), a flank face (438, 538, 638), and a corner cutting region(432, 532, 632). The seating surface (434, 436, 534, 536, 634, 636) contains a radial coolant delivery trough (460, 560, 660) Witha radial outWard end (478, 578, 678) and a radial inWard end (462, 562, 662). One lateral topographic region (480, 580, 680) isalong one side (466, 566, 666) of the coolant delivery trough (460, 560, 660) and another lateral topographic region (482, 582,682) is along another side (468, 568, 668) ofthe coolant delivery trough (460, 560, 660). |