【正文】 for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching pound die with float punchmatrix,the drawing and cutting pound dies with unaltered press,the pound die for the back bowl of the noise keeper,the design of the pound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring pound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape punching dies that utilized the feature of the normal punch shaped the workpiece in the room temperature,and its efficiency and economic situation is excellent. The dies here discussed can be easily made,conveniently used, and safely it could be used as the reference in the large scale production of similar workpieces. CAD and CAM are widely applied in mould design and mould making. CAD allows you to draw a model on screen, then view it from every angle using 3D animation and, finally, to test it by introducing various parameters into the digital simulation models(pressure, temperature, impact, etc.) CAM, on the other hand, allows you to control the manufacturing quality. The advantages of these puter technologies are legion: shorter design times(modifications can be made at the speed of the puter),lower cost, faster manufacturing, etc. This new approach also allows shorter production runs, and to make lastminute changes to the mould for a particular part. Finally, also, these new processes can be used to make plex parts. ComputerAided Design(CAD)of Mould Traditionally, the creation of drawings of mould tools has been a timeconsuming task that is not part of the creative process. Drawings are an anizational necessity rather than a desired part of the process. ComputerAided Design(CAD) means using the puter and peripheral devices to simplify and enhance the design process .CAD systems offer an efficient means of design, and can be used to create inspection programs when used in conjunction with coordinate measuri