Precision parts industry standards are strict, when processing, there are different process processes such as feeding, discharging and so on. Dimensions also vary according to the specific requirements of the products, and the requirements of processing accuracy are different. Generally speaking, the requirements of precision processing accuracy are high. Sometimes even the micron differences under 1mm are high. If the products with large size differences become waste products, they need to be reworked to meet the requirements. This process is time-consuming and laborious. Sometimes, the raw materials will be scrapped, resulting in scrap. With the increase of the cost, at the same time, parts are not available, so there are many requirements for precision parts processing. So what are the requirements of precision parts processing?

(1) Usually in order to ensure the processing accuracy of parts, rough parts and precision mechanical parts operate separately, because the cutting quantity, clamping force, calorific value and cutting force of rough parts processing and precision parts processing are different. If rough processing and precision processing are carried out continuously, the precision of precision parts will be lost because of different stresses.

(2) Rationality of equipment selection. Rough parts processing does not require high processing accuracy, but mainly for machining allowance cutting, so precision processing requires high precision machine processing.

(3) Heat treatment process is often arranged in the process route of precision parts. The position of heat treatment process is arranged as follows: in order to improve the cutting performance of metals, such as annealing, normalizing, tempering, etc., it is generally arranged before the processing of mechanical parts.

(4) Generally speaking, there are heat treatment processes in the processing of precision parts, which can improve the cutting performance of metals.