- - - SLOT-MILLING TOOL AND SLOT-MILLING INSERT FOR A SLOT-MILLING TOOL

摘要

The slot-milling tool comprises a slot-milling insert mounted on the edge of the tool-holder of the slot-milling tool. The insert includes a first side, a second side, and a plurality of edge surfaces between the first side and the second side, wherein each edge surface intersects another edge surface at a corner to form a cutting edge. The first and second sides each having a side insert support surface for abutting against an adjacent surface of the tool holder, the insert having a center plane extending through the edge surface intermediate between the first and second sides, And is symmetrical. A chip breaker is provided on each edge surface and corresponds to a respective cutting edge, each chip breaker including a portion projecting toward a recess and a cutting edge below the cutting edge, the protrusion comprising a projection and a first and a second And the first and second chip deflection recesses are respectively defined between the side surfaces.