What principles should be mastered in precision machining

1. In order to ensure the relevant machining accuracy during precision machining, rough machining and finishing must be separated during machining, because the amount of cutting is relatively large during rough machining, and the cutting force and clamping force on the workpiece are also Larger, this will cause more heat to be dissipated, which will naturally lead to hardening of the surface, and there may be internal stress inside. If it is carried out continuously, the accuracy may be lost for a long time. Therefore, it is recommended to perform rough machining One thing to do before fine processing is low-temperature annealing or to eliminate internal stress in accordance with a suitable method.





2. Because a lot of machining allowances must be cut off during rough machining, the requirements for machining accuracy are not very high. Therefore, the equipment selected during machining must have a higher power. However, the precision requirements of equipment are not high enough, and precision machining requires the selection of high-precision machine tools, so as to ensure that the capabilities of the equipment can be used and the life of the machine tool can be extended.