⑴ The processing of the previous process cannot affect the positioning and clamping of the next process.
⑵First inside and then outside, that is, the inner cavity (inner hole) is processed first, and then the outer shape is processed.
⑶ The process of machining with the same installation or using the same tool should be carried out continuously to reduce errors caused by repositioning or tool change.
⑷In the same installation, the process that has little effect on the rigidity of the workpiece should be carried out first.
