What are the requirements for materials for ultra-precision parts processing?

What are the requirements for materials for ultra-precision parts processing?

        Precision machining, not all materials can be precision machined, some materials are too hard, exceeding the hardness of the machined parts, it may collapse the parts, so these materials are not suitable for precision machining, unless it is special Parts made of material, or laser cutting. So what are the material requirements for ultra-precision parts processing?

      Materials for precision machining are divided into two categories, metallic and non-metallic materials. For metal materials, the hardness is stainless steel, followed by cast iron, copper, and aluminum. The processing of ceramics, plastics, etc. belongs to the processing of non-metallic 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 machined parts. The processed material cannot be too hard. processing.

       2. Secondly, the material should be moderately soft and hard, at least one grade lower than the hardness of the machine parts. At the same time, it also depends on the function of the machined parts, and the material selection for the machined parts is reasonable. In short, precision machining still has some requirements for materials, not all materials are suitable for processing, such as materials that are too soft or too hard, the former is not necessary for processing, while the latter cannot be processed. Therefore, you must pay attention to the density of the material before processing. If the density is too high, it is equivalent to a high hardness. If the hardness exceeds the hardness of the machine tool (lathe tool bed), it cannot be processed, which will not only damage the parts, but also cause Dangerous, such as the knife flying out and hurting people. Therefore, in general, for mechanical processing, the material quality is lower than the hardness of the machine tool, so that it can be processed.