First of all, the complexity of the part is a key factor affecting the machining time. Complex parts usually require more machining steps and longer machining times. For example, parts with many small bumps may take longer to be finely machined.

Secondly, the machining material will also affect the machining time. Different materials have different hardness and properties, so the machining time will be different. In general, materials with lower hardness are processed faster, while materials with higher hardness require longer machining time.

Third, the required precision also affects the machining time. If high-precision parts are required, more cutting and grinding steps are usually required, which increases the machining time. On the contrary, if the accuracy requirements are low, the machining time will be correspondingly reduced.

Fourth, the size and number of parts are also factors that affect machining time. Large parts usually require longer machining times, while small parts require shorter machining times. In addition, if the machining is a large number of parts, you can save time by continuous operation, compared to the machining of a single part will be relatively longer.

In addition, there are other factors that affect the machining time, such as the efficiency of the equipment, the proficiency of the operator, and so on. Good equipment and experienced operators can complete machining tasks faster.

In summary, the machining time of CNC precision parts is determined by a variety of factors. The machining time of each part is independent, and the specific time factor needs to be evaluated according to the actual situation. In general, the machining time of high complexity, high material hardness, high precision requirements, large size and large quantities of parts to be processed will be relatively long.