For precision parts processing materials are divided into two categories, metal materials and non-metal materials.
For metal materials, the hardness is stainless steel, followed by cast iron, followed by copper, and finally aluminum.
And the processing of ceramics, plastics and so on belongs to the processing of non-metallic materials.
1. First of all, the hardness of the material is required. For some occasions, the higher the hardness of the material, the better, but limited to the hardness requirements of the processing machine, the processing material can not be too hard, if it is harder than the machine is unable to process.
2. Secondly, the material is moderate soft and hard, at least one grade lower than the hardness of the machine, but also depends on the role of the processing of the device is to do what to use, reasonable material selection of the machine.