| 摘要 |
The present invention relates to a milling cutter. The cutter comprises a holder and at least two cutting inserts. The cutting inserts (10;50) have a generally octagonal basic shape and each includes at least three major cutting edges (16,55A). An edge face of each insert is provided with a step which is provided so as to constitute an exit zone for a fracture. At least one of the cutting inserts is a wiper insert (50) and every other cutting edge of the wiper insert is a major cutting edge (55A) joining a wiper edge (55B) situated between two major cutting edges. A first distance of the wiper insert between two diametrically opposed wiper edges (55B) is larger than a second distance of the wiper insert between two diametrically opposed major cutting edges (55A). The invention further relates to a cutting insert (50), per se. <IMAGE> |
