The Fetured Anaiysis for Surface Pattern and Position of Workpiece and the Information Integration

From describing workpiece's information,as to large-size box's CNC,'anslysis method of surface position feature' is put out. The principle of this method is discussed.The classification of feature surface position,concept and function of feature cell,and programming method ard introduced.The integration of CAPP and CNC is realized by workpiece's decomposition and renew.