1) The cavity and shape of CNC machining Japan parts usually adopt uniform geometric types and sizes. This can reduce the tool specifications and the number of tool changes, facilitate programming, and improve production efficiency.
2) The fillet size of the inner groove determines the size of the tool diameter, so the fillet radius of the inner groove should not be too small. The quality of the part manufacturability is related to the height of the processed contour and the size of the transition arc radius.
3) When the part is milling the bottom plane, the groove bottom fillet radius r should not be too large.
4) A unified reference positioning should be used. In CNC machining, if there is no uniform reference positioning, it will lead to the reinstallation of the workpiece.
Causes the inconsistency of the contour positions and dimensions on the two surfaces after processing. Therefore, avoid the above problems and ensure two clampings
The accuracy of the relative position after processing should be based on a unified reference positioning.
It is better to have suitable holes on the parts as positioning reference holes. If not, set process holes as positioning reference holes (such as adding process lugs on the blank or setting process holes on the margin to be milled in the subsequent process). If the process hole cannot be made, at least the finished surface should be used as a unified reference to reduce the error caused by the two clamping.
In addition, it should be analyzed whether the required machining accuracy and dimensional tolerances of the parts can be guaranteed, whether there are redundant dimensions that cause contradictions or closed dimensions that affect the process arrangement.