| Automobile industry has been ranked in the support industries of national economy by all the developed countries in the world, so has been done in our country. In our country, rapid development of automobile industry and rapid update of new automobile model provide automotive die with huge market, and bring forward higher request to the die corporation at the same time. Panel die which is the mostly technics equipment of auto-body has direct restrict effect on the quality of automotive productions and development of new model. Further more, 90 percent of automotive panel are formed by stamping. So rapid numerical simulation design of stamping die is very important for quickening the speed of die design, improving the quality of die design, shortening the circle of die debugging and manufacture, reducing the cost of die.CAE technique which provides numerical die of CAD with simulation of stamping process can make die design more reasonable, and reduce the cost of die debugging in CAM. With maturation and application of CAE technique, adopting traditional method of stamping die addendum design must modify the addendum returned to CAD,when the addendum surface need modifying in CAE. Then a series of steps including mesh, fill hole, flange in CAE need doing again, so the efficiency of simulation will be depressed greatly. By this token, in order to quicken the speed and improve the quality of die design, stamping Die-face——surface design of stamping die(generate addendum surface, binder surface and mesh in CAE) acts an absolutely necessary part in CAE.In order to improve the design quality of die surface and shorten the design circle of die surface, stamping Die-face which integrates CAD of die surface into CAE circumstance can implement die surface CAD connected with CAE without sew. This work not only does good exploration to the design mode of die in future, but also applies powerful support for improving the competition of die...
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