| 摘要 |
The invention relates to a tool and a cutting insert for chip removing machining, such as milling, turning or the like. The cutting insert (2) comprises a chip-removing main edge (38), which is separated from a centre (C3) of the cutting insert and from which a clearance surface (37) extends toward a transition (44) to an underside in the form of a connecting surface (36), in which an elongate engagement means, e.g., a ridge (42), is included, which is situated nearer the transition (44) than the centre (C3) of the cutting insert, and includes a flank (47) having the purpose of transferring cutting forces in the direction transverse to the length extension of the ridge. The ridge (42) is the only active engagement means of an imaginary triangle between the centre (C3) of the cutting insert and opposite ends of the transition (44), besides which the flank (47) has a cross section-wise convex shape. In such a way, it is guaranteed that the active edge of the cutting insert is located in a desired exact space position in relation to the tool, even if the cutting insert is impaired by minor form defects. |
