In the process of precision parts processing, the most common processing methods are generally turning and milling parts, that is, some of our common precision parts are milled parts or turned parts, which can be collectively referred to as cutting parts, and cutting can be divided into "rough cutting" And "finish cutting", what is the difference between rough cutting and fine cutting?

After the rough cutting of the workpiece, the entire workpiece is actually very close to the appearance and size required by the workpiece itself, but at this time there is still a large margin on the surface of the workpiece for fine cutting. The surface of the workpiece after the fine cutting treatment is more Smoother, the size will be more accurate.

Under normal circumstances, the workpiece can achieve the required appearance and size of the workpiece after one rough cutting and one fine cutting. However, not all workpieces only need to be cut once, and some parts of some workpieces may require multiple rough cuttings. At the same time, there are also some workpieces whose accuracy requirements are not too high or the cutting amount is small, and it is possible to achieve the requirements of the workpiece with only one fine cutting.

Rough cutting requires a large cutting margin for the workpiece, so it needs to have a greater cutting force than fine cutting. This requires the machine, tool, and workpiece to be able to meet, and the rough cutting is actually possible to quickly remove the margin, and the effect The surface properties afterwards should not be too rough.

Fine cutting is for the surface properties of the workpiece and the dimensional accuracy meets the requirements of the workpiece. Therefore, the tools required for fine cutting also need to be very sharp. Because the cutting amount is small, the measurement precision is very high.