The specified precision parts for materials are as follows: precision metal parts are processed, and not all materials are precision processed. For example, the hardness of some materials is too high, which exceeds the hardness of processing components, and some unique materials are not suitable for precision machining. Then, what is the material for precision parts. What is the actual regulation. The regulations of material hardness are introduced in detail. In some cases, the higher the hardness of the material, the better, but the hardness of the processed component is specified. Please do not use too hard processing materials. It can not be processed when it is harder than the equipment parts.
Secondly, the material has reasonable soft hardness, which is less than one level lower than the hardness of mechanical parts. At the same time, it also lies in the use of processing machinery and equipment and the effective selection of mechanical parts.
In a word, precision parts processing has several provisions on materials. Not all materials are suitable for processing. For example, too soft materials and too hard materials. The first type does not need to be processed, and the latter type cannot be processed.
Therefore, basically one is to pay attention to the relative density of materials before processing in the machine parts processing plant. If the density is too high, the hardness is also too high. If the hardness exceeds the hardness of mechanical parts (CNC blades), it cannot be processed. Not only will the parts be damaged, but also the risk of injury caused by flying NC blades will continue. Therefore, generally speaking, in the process of mechanical equipment, in order to better carry out processing, the material of the material must be lower than the hardness of the knife.
For precision parts processing, there are specifications. For example, the cylinder diameter is strictly managed, and the deviation between positive and negative poles is within the specified area. There are also incorrect requirements for being positive and negative. For example, if the diameter of an embedded cylinder (taking a simple basic element as an example) is large and exceeds the allowable deviation range, it will cause the situation that it cannot be inserted. If the specific diameter is too small, if it exceeds the low value of the allowable negative measurement error, it will cause too loose and loose insertion. This kind of commodity is not qualified, or the length of the cylinder is too long or too short, which exceeds the allowable deviation range. All are special.
