Precision machining is not suitable for all raw materials. If the hardness of some raw materials is too large and exceeds the hardness of the processing parts, the parts may be broken. Therefore, these raw materials are not suitable for precision machining, unless they are made of unique raw materials or laser cutting.
The raw materials for precision machining are divided into two categories: metal raw materials and non-metal raw materials.
As for metal raw materials, the hardness of stainless steel is relatively large, followed by cast iron, followed by copper, and finally aluminum.
The processing of ceramics and plastics belongs to the processing of non-metallic materials.
1. First of all, the hardness of raw materials is required. For some scenes, the higher the hardness of raw materials is, the better it is. It is only limited to the hardness requirements of machining parts. The processed raw materials cannot be too hard. If they are harder than the parts, they cannot be machined.
2. Secondly, the material is moderate in hardness and softness, at least one level lower than the hardness of the parts. At the same time, it depends on the function of the processed parts and the correct selection of materials for the parts.
In a word, precision machining still has some requirements for materials, not all materials are suitable for processing, such as too soft or too hard raw materials, the former is not necessary for processing, the latter is unable to process.
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