| 摘要 |
A cutting insert for milling cutter tools, primarily for side milling cutters and slotting cutters, has upper and lower, mutually opposed surfaces (17, 18), of which at least the lower one (17) is substantially planar in order to form a bottom surface that may bear against a cooperating support surface on the milling cutter tool. Further, the cutting insert comprises mutually opposed first and second side surfaces (20) and mutually opposed third and fourth side or gable surfaces (30, 31), which either forms a main cutting edge (23, 25) at an edge line distal from the bottom surface (17). The cutting insert may be rotated half a revolution in order to indexate the one and the other main cutting edge, respectively. One of the main cutting edges (25) is more distant than the other main cutting edge (23) from the center axis of the screw hole, the more distant cutting edge being shorter than the nearer cutting edge (23) and located substantially symmetrically relative to the middle of said side or gable surface (30). In this way, when the cutting inserts are mounted into alternate directions in the side milling cutter, a chip partition is obtained, and thereby an improved chip-flow. <IMAGE>
|
