Study On CAD/CAE/CAM Technology Of Auto Panel Stamping Mould

With the fast development and popularization of computer technology, the technology of CAD/CAE/CAM has been widely applied to auto industry and has became the key technology in this field. This paper presents detailed research of some technologies of CAD/CAE/CAM, aiming at auto panel stamping mould.In the respect of CAD, in accordance with deficiency and low-efficiency of part library of stamping mould, with CATIA V5 and SQL Server 2000 software as research tools, the CAD system of 3D parameterized part library of stamping mould is established and the parametric design is realized, and the client application procedure is designed. It realizes that the standard part library can build up models by itself and improves the efficiency of mould designing and shortens the manufacture cycle of new products.In the respect of CAE, with AutoForm as the software platform, It has finished prediction of part formability by applying basic principle of one-step. Compared with the result of incremental simulation, it indicates that the result obtained by one-step can be accepted. It can be applied in the part preliminary design, process parameters design stages and rapid assessment of formability. In addition, the drawing die of automobile covering taken as a research object, according to the computer method of sheet forming and spring-back, the design of covering drawing die, the analyses of formability and the calculation of spring-back are finished,and Parameter Virtual Debugging for die is realized, which make the forming deficiencies eliminated before the manufacture of die and also make the manufacturing level of die advanced.In the respect of CAM, aiming at the stainless steel mould with typical difficult-to-machine materials 0Cr18Ni9Ti and curved surface, the polishing test is carried out by the processing of electrolytic-mechanical-magnetic polishing,stainless steel mould which is made with 0Cr18Ni9Ti is polished. The results prove that the surface roughness of mould can reach to Ra=0.03μm and the polishing efficiency and quality can be advanced by this method.The method presented in this paper improves the quality and precision of mould manufacturing by the research of the Integrative technology of CAD/CAE/CAM of auto panel stamping mould, which helps shorten mould produce cycle.