CNC machining is divided into general processing and high-speed processing two categories, the general machine generally refers to the machine tools within 8000 revolutions;High-speed machine is generally refers to the number of revolution can more than 12,000 machine tools, between 8000~ 12,000 machine tools called quasi high-speed machine.
CNC machining process is used to be divided into three categories, coarse, medium light (semi-fine), light cutter (fine milling), generally it is recommended to open coarse with a larger tool (flying cutter and end milling cutter) and a larger cutting depth and step distance (heavy cutting), in order to quickly remove a large number of materials.With light cutting (small cutting depth, small distance) with high speed and feed operation to obtain a perfect surface accuracy.Light plane with end milling cutter (or fillet cutter) and flying cutter, light vertical wall with end milling cutter, light surface with ball cutter (or fillet cutter).
In the process of processing, should be processed according to the material hardness of the parts, choose the appropriate tool.
Copper, aluminum and hardness in 38 degrees of rockwell steel (such as steel 45) should be selected quality steel knife.For materials with higher hardness (such as quenched die steel), alloy knife, titanium knife or tungsten steel knife should be preferred.