As we all know, two systems should be established for these angles and planes: The first is a plane and angle grinding system, which treats tungsten steel cutters as stationary and is suitable for sharpening and re-grinding tungsten steel cutters. The second is a flat and angle working system, which is suitable for tungsten steel milling cutters in the cutting process.
There are two reasons for the need for two systems: The first is because with the increase in feed during turning, the actual rake angle increases and the actual rake angle decreases. The second reason is that tungsten steel cutters (especially single-blade tungsten steel cutters) have the possibility of being clamped on the machine tool in different orientations, thus changing the actual angle of tungsten steel cutters. Therefore, the sharpening system is based on the bottom surface of the tungsten steel cutter (for the rotation of the tungsten steel cutter as its axis), while the working system of the tungsten steel cutter is based on the synthetic cutting direction and feed of the tungsten steel cutter. Direction of movement.
At a certain point on the main edge of the single-blade tungsten steel cutter, the two planar systems required for the shape of the tungsten steel cutter are specified. It must be noted that in addition to the planes or angles to which both systems are applicable, the plane and angle designations for the sharpening system in the table are all preceded by the word “tungsten steel milling cutter”, and for the plane and angle designations of the working system, The word "work" is used.