(1) select and determine to nc machining of parts and content;

2 nc machining process analysis was carried out on the drawings;

(3) the nc machining process design;

(4) mathematical processing of parts drawings;

5] write processing program list;

[6] according to the application of single production control medium;

once the program check and modification;

being the first to try processing with the problem;

'levies finalize the design of nc machining process documents and archiving.