The processing of the previous process should not affect the positioning and clamping of the next process.

CNC machining

⑵ First inside then outside, that is, the internal cavity (inner hole) is processed first, and then the external shape is processed.

⑶ The process of machining with the same installation or use of the same tool is better carried out continuously to reduce errors caused by repositioning or tool replacement

In the same installation, the process that has a small impact on the rigidity of the workpiece should be carried out first.