The difference between rough cutting and fine cutting of precision mechanical parts processing
In the processing process of precision mechanical parts, the common processing method is turning processing and milling parts, and some common precision parts are milling parts or turning parts. After the rough cutting of the workpiece, the whole workpiece has been very close to the appearance and size of the workpiece itself, but at this time, there is still a large margin on the surface of the workpiece to make fine cutting. The surface of the workpiece is more smooth, and the size will be more accurate.
Usually, precision mechanical parts processing pieces after a rough cut and a fine cut can achieve the required appearance and size of the workpiece. However, not all workpieces are only have one cut, and some parts of some workpieces may require multiple rough cuts. At the same time, there are also some workpiece itself accuracy requirements is not too high or the cutting amount is very small, but also may only need to pass a fine cutting to meet the requirements of the workpiece.
The coarse cutting in the processing of precision machining parts because the workpiece needs a large cutting margin, so it needs to have a greater cutting force than the fine cutting, which requires the machine, tools, workpieces can meet, and the coarse cutting is likely to quickly remove the margin, and the surface performance after the effect can not be too rough.
The precision cutting of precision mechanical parts processing is the surface performance of the workpiece, and the size accuracy meets the requirements of the workpiece, so the precision cutting tool is also very sharp, because the cutting amount is small, so the measurement precision requirement is very high.
In fact, there are so many we can't see the parts with precision mechanical parts processing has an inseparable relationship, such as the inside of the very small nut, because these nuts are customized according to the demand of mobile phone manufacturers, almost no standard, and the precision requirement is very high, so almost all are dependent on precision machining production.
