【正文】 mputerintegrated manufacturing (CIM) represents integration of electronic data processing (EDP) into all departments associated with planning and production of an object (in this case,a mold):the linking of puteraided design (CAD),Computeraided production (CAP),conputeraided manufacturing (CAM),puteraided qualityassurance (CAQ)， production planning and schedulng (PPS)(see Fig 1) in terms of information means uninterrupted exchange of all information pertinent to a munications link is provided by the integrated EDP importantance ithin the CIM structure is assigned to of the theoretical priuct developed in CAD into the practical reality o mold occurs via CAM. Linking of PPS to implement CIM of Comoutes for Machining of an Injection Mold The objective of CAM is to produce,f possible,sections of a mold without intermediate steps (..,elimination of copy patterns),.,by initidting machining operations from the puter workstation. Prerequisites for CAM in the sense of CIM include CAD,the munications interface,and appropriate software and hardware for converting product information in the required production operations (see sequence diagram,Fig2). Mold Producting Sequence for Part Construction CAD means puteraided design on a designer,initially the part designer,draw a product with the aid of the puter part,primarily its visible surface,is modified until both function and appearance (design) of the part satisfy the requirements. For plasic parts with character determining product properties,. automobile bumper fascias,product design does not occur on the creen development takes place in a kink of bidding proces in which several stylists (designer)frist prepare plaster patterns,which are then presented to the management of the automotive manufacture in a management makes a selection and agrees on a design ,measurements are taken at various points on the piaster pattern of the select model,and these data are transferred to the CAD these data,the part designer can now start designing the part on the the aid of software programs,the designerbegins to connect the individual points to form 3D transitions are smoothed and the product design is refined until the desired result is achieved. In a subsequent step,the work on the screen is converted into a 3D master pattern through creation of a machining program form the surface data of the master partern thus produced can now be attached to a cubing model that representa the entire this phase in the development of the product the stylist,who was originally responsible for the plastr pattern,will generally allow minor changes to be hese final modifications are made,the design is approved. The approved master pattern is now pletely digitized,.,a stylus scans the surface of the pattern,and part designer can plete the software now describes the product in puter design can be modified,duplicated,and exchanged freely with other puter