FACE MILLING CUTTER AND METHOD FOR MACHINING A SURFACE ON A WORKPIECE BY MEANS OF SUCH A FACE MILLING CUTTER

A face milling cutter (1) comprising a tool body (2) provided with several primary cutting inserts (20a-20g), a pattern forming insert (30) with a pattern forming cutting edge (37) for forming a grooved pattern in a milled flat surface formed on a workpiece by the primary cutting inserts, and a calibrating insert (40) with a calibrating cutting edge (47) for cutting summits in said grooved pattern. The pattern forming cutting edge is wave-shaped as seen from a direction facing a rake face of the pattern forming insert with a periodic wave shape comprising a plurality of wave crests and intermediate wave troughs. The calibrating cutting edge is located axially between the wave crests and wave troughs of the pattern forming cutting edge as seen in a direction from the rear end (2b) of the tool body towards the front end (2a) of the tool body in parallel with the longitudinal axis (4) of the tool body.