ABSTRACT
This thesis introduces the basical conception and support entironment of Computer aided manufancturing,the information description of part and Computer aided CNC manufancturing.Because my graduate design is about the post program of Matercam ,this thesis introduces the format and the function of numerical control program. Especially,it tells about the enactment and realization of the post program at large.In the end,it also narrates the implement and function about the software of this graduate design approximately,and accordingly elicits the final outcome——NC procedure,which is attached in the thesis,so as to receive the reference and guidance from teachers and leaders.From this thesis,it can be discovered that:the software of Mastercam plays an important role in the field of CAM,and we can see its convenience,shortcut and nicety.