Precision parts processing for material requirements

Precision parts processing on the material requirements: precision parts processing is not all materials can be precision processing, part of the material hardness is too large, more than the hardness of the machine parts, it may break the machine parts, so these materials are not suitable for precision machining, unless it is made of special materials, or laser cutting. For precision parts processing materials are divided into two categories, metal materials, non-metallic materials. In general, the hardness of stainless steel is large, followed by cast iron, followed by copper, and finally aluminum. The processing of ceramics, plastics, etc. belongs to the processing of non-metallic materials.
1, first of all, the material hardness requirements, for some occasions, the higher the hardness of the material, the better, but limited to the hardness requirements of the machine parts, precision parts processing materials can not be too hard, if harder than the machine parts will cause can not be processed. 2, second, the material soft and hard moderate, at least lower than the hardness of the machine a grade, but also to see what the role of the processing device is to do, the machine parts reasonable material selection. In short, precision parts processing on the material requirements are still some, not all materials are suitable for processing, such as too soft or too hard materials, the former is not necessary for processing, and the latter is not able 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, the equivalent of hardness is also very large, and the hardness if more than the hardness of the machine parts (carbed sci-vest), is not processable, not only will damage parts, but also cause danger, such as the car knife crash out of injury and so on. Therefore, in general, for mechanical processing, the material material is lower than the hardness of the machine knife, in order to be processed.