Precision parts processing, not any material can be precision machining, precision parts processing on the material requirements are very strict. So we know what materials are generally used for precision parts processing? Next, let me share with you!
For precision machining materials are divided into two categories, metallic materials and non-metallic materials.
For metal materials, the hardness of stainless steel is the largest, followed by cast iron, followed by copper, and finally aluminum. The processing of ceramics, plastics, etc. is the processing of non-metallic materials.
First of all, the hardness of the material requirements, for some occasions, the higher the hardness of the material is the better, but only limited to the hardness of the processing machine requirements, the processing of the material can not be too hard, if harder than the machine is unable to process.
Secondly, the material is soft and hard, at least one grade lower than the hardness of the machine, but also depends on the role of the processed device is to do what with a reasonable selection of materials for the machine parts.
In short, precision machining requirements of the material or some, not what material is suitable for processing, such as too soft or too hard material, the former is not necessary for processing, and the latter is impossible to process.
Therefore, the most basic one is, before processing must pay attention to the density of the material, if the density is too large, equivalent to the hardness is also very large, and if the hardness is more than the hardness of the machine (lathe turning tool), it is impossible to process, not only will damage the parts, but also cause danger, such as turning tool flying out of the crash injury. Therefore, in general, for mechanical processing, the material material should be lower than the hardness of the machine tool, so that it can be processed.
