The materials for precision machining can be divided into: metal materials and non-metal materials.
1. The first is the requirement for the hardness of the material. For some occasions, the higher the hardness of the material, the better, but it is limited to the hardness requirements of the machining parts.
2. Secondly, the material is moderately soft and hard, at least one grade lower than the hardness of the machine. At the same time, it depends on what the processed device is used for and the material is reasonably selected.
In short, there are still some material requirements for precision parts processing. Not all materials are suitable for processing, such as too soft or too hard materials. The former is not necessary for processing, while the latter cannot be processed.
Generally speaking, for mechanical processing, the material should be lower than the hardness of the machine tool so that it can be processed.