Index with two corners with different corner radii

摘要

The indexable cutter (30) for end milling in a machine tool of contours in a workpiece is asymmetrical in relation to a line through a hole in it. Each cutter edge part comprises a mainly straight cutting edge (32,33) and a curved cutting edge (38,39) along intersecting lines between a release surface and a swarf surface (35). The curved cutting edges have different lengths. The cutter has an under side and first and second opposing corners (36,37). The second corner (37) is defined in plan view by a radius (R1), which is at least twice as large as a radius (R2) for the first corner.