The milling machine is a machine that uses a milling cutter for cutting.

     ⑴ Application: Machining surface (horizontal plane, vertical surface, etc.), groove (keyway, T-slot, dovetail groove, etc.). Tooth tooth (gear, sprocket, ratchet, spline shaft, etc.) Surface (thread and spiral groove) and various surfaces.

    ⑵ milling features: ① each tooth is not uniform, non-continuous cutting, cut and cut off when the hard gas conflict and vibration;

                ② milling cutting layer parameters and cutting force is changing, but also easy to cause vibration, affecting the quality of processing;

                ③ At the same time to participate in the cutting of the more teeth, higher productivity.

    ⑶ milling methods: ① end milling: commonly used processing plane

                ② Weekly milling:

                 A. Reverse milling: the direction of rotation of the milling cutter and the direction of the workpiece feed the opposite direction, features: to improve tool durability, workpiece Ra to ensure that the workpiece clamp is stable, easy to play knife.

                  B. Milling: The direction of rotation of the milling cutter is the same as that of the workpiece. Features: Accelerated tool flank wear, damage the workpiece surface Ra, so that the workpiece is unstable.

      ⑷ milling machine classification: milling machine can be divided into: horizontal lift milling machine; vertical lift milling machine; gantry milling machine; tool milling machine; all kinds of specialized milling machine.