The development of my country's processing industry is getting better and better, and the processing of precision parts is becoming more and more strict. Not all materials can be precision machined. Some materials are too hard and exceed the hardness of the machined parts, which may collapse the parts. bad, so these materials are not suitable for precision machining, unless they are parts made of special materials, or laser cutting. From the perspective of material analysis, the material for precision parts processing is very important. The higher the hardness of the material, the better. At the same time, be sure to pay attention to the density of the material before processing. If the density is too high, it is equivalent to a large hardness.
Materials for precision machining are divided into two categories, metallic materials and non-metallic materials; for metallic materials, the hardness is stainless steel, followed by cast iron, followed by copper, and finally aluminum.
The processing of precision parts is mainly dimensional requirements, such as the diameter of the cylinder, there are strict requirements, and the positive and negative errors are within the specified requirements. Negative errors are also stipulated, such as a built-in cylinder (take the simplest basic component as an example), if the diameter is too large and exceeds the allowable range of error, it will cause the situation that it cannot be inserted, if the actual diameter is too small , exceeding the lower limit of the allowable negative value of the error, it will cause the insertion to be too loose and the problem of not firmness will occur.
