As you know, two systems should be established for these angles and planes: the first is a flat and angular sharpening system that treats tungsten steel milling cutters as stationary and is suitable for sharpening and re-grinding tungsten steel milling cutters. The second is a flat and angular working system, which is suitable for the machining of tungsten steel milling cutters.
There are two reasons for the need for two systems: the first is that as the feed increases as the feed increases, the actual rake angle increases and the actual relief angle decreases. The second is because tungsten steel milling cutters (especially single-edge tungsten steel milling cutters) have the possibility of being clamped on the machine in different orientations, thus changing the actual angle of the tungsten steel milling cutter. Therefore, the sharpening system is based on the bottom surface of the tungsten steel milling cutter (for the axis of the rotating tungsten steel milling cutter), while the working system of the tungsten steel milling cutter is based on the synthetic cutting direction and feed of the tungsten steel milling cutter. The direction of movement is prescribed.
At one point of the main blade of a single-edged tungsten steel milling cutter, two planar systems are required to define the shape of the tungsten steel milling cutter. It must be noted that, except for the plane or angle to which both systems are applicable, the plane and angle names for the sharpening system in the table are marked with the words “tungsten steel milling cutter”, and for the plane and angle names of the working system, The word "work" is used.