Three-dimensional curved structure advantage will promote the development of the three-dimensional bending process flexible advanced manufacturing and profiles of three dimensional curved three villa organically combined to realize the flexible bending forming process in such a background and situation, the new forming technology has very broad application prospects but at the same time of increase the bending dimension, the complexity of the forming also will increase, brought a series of problems to be solved as a result, for the development of this new forming technology and key technology research has certain significance