What are the material requirements for precision parts processing
Precision machining, not all raw materials can be carefully processed. Some raw materials are too hard, beyond the hardness of the processing machine parts, the machine parts may collapse, so 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 the metal raw materials, the hardness is greater for stainless steel, followed by cast iron, followed by copper, followed by 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 of moderate hardness, 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.
Therefore, before processing, we must pay attention to the density of the material. If the density is too large, it is equal to the hardness. If the hardness exceeds the hardness of the machine (lathe tool), it is impossible to process. It will not only damage the parts, but also cause danger, such as the tool flying out and hurting people. Therefore, generally speaking, for machining, the material of raw materials should be lower than the hardness of the machine tool, so that it can be processed.
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