CNC hand board processing is usually divided into four stages:

1. Rough machining. Rough machining mainly involves removing most of the machining allowance on each surface, so that the shape and size of the blank are close to the finished product. The characteristics of this stage are the use of high-power machine tools, the selection of larger cutting tools, the maximization of productivity and the reduction of tool wear.
2. Semi precision machining. Semi precision machining is the process of completing the secondary surface and preparing for the finishing of the main surface.
3. Fine machining. Fine machining is the process of ensuring that the main surface meets the requirements of the drawing.
4. Finishing processing. Finishing is a surface that requires high surface roughness and machining accuracy, and also requires finishing. This stage is generally not used to improve the positional accuracy of the parts.
The characteristics of CNC hand board processing model processing:
1. High machining accuracy;
2. Multi coordinate linkage machining of complex parts;
3. Greatly saving production time;
4. High degree of automation and efficiency;

