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                                                            Abstract

                                                            ¡¡¡¡Asymmetric-slender shaft parts with complicated shape and variety is difficult for processing. With the rapid development of Cross wedge Rolling technology, a convenient and efficient processing method for processing the asymmetric-slender shaft is produced.

                                                            ¡¡¡¡However, there is an emergent new problem: Designning and manufacturing of CWR die,the shaft shape is more complex the die designing is more complex and the manufacturing is more difficult. So the CAD/CAM technology is used in cross wedge rolling mould production, this can improve the quality of cross wedge rolling mould, shorten the cycle of mould design and manufacture and importantly solve the above problems.

                                                            ¡¡¡¡For wedge rolling mould, this text utilize the Pro/E development kit Pro/TOOLKIT to secondary development on CAD/CAM system of Pro/E. Use VC++ programming language, Pro/TOOLKIT to call function and MFC visual dialog box technology to develop the application program interface, this system is easy to operate, flexible, friendly man-machine interface, it has practical significance on the design level of cross wedge rolling mould and realizing automation of mould manufacturing. First design CWR mould for a given asymmetric-slender shaft, then application of feature modeling technology make the mould features storage with classification for parametric modeling extraction then generate 3D solid model of cross wedge rolling tool. After that analysis mould processing scheme and confirm of NC code processing mould and generate cross wedge rolling die.

                                                            ¡¡¡¡On the basis of the theoretical study, empolder system of CAD/CAM for CWR die including the establishment of cross wedge rolling mould feature model, computer aided process design of the die and computer aided manufacturing mold. In addition, this research establishment of the ACCESS database, and make this database connection with VS2005 to handle mold character information that processing system required, the die processing technology information and the tool information. And then aimed at the specific NC machining center generate reasonable NC code.

                                                            ¡¡¡¡Keyword: cross wedge rolling; feature modeling; CAD/CAM; Pro/TOOLKIT; MFC

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