3Chen W, Yang J C, Lin Z Q. Expansion Ratio for Initial Die-Face Design of Panel Drawing Dies. International Journal of Machine Tools and Manufacture, 2002,42(10):1195~1202
4Kim S H, Huh H. Design Modification in a Multi-stage Rectangular Cup Drawing Process with a Large Aspect Ratio by an Elasto-plastic Finite Element Analysis. Journal of Materials Processing Technology, 2001,113:766~773
5Chen W, Yang J C, Lin Z Q. Application of Integrated Formability Analysis in Designing the Die-face of Automobile Panel Drawing Dies. Journal of Materials Processing Technology, 2002,121(2-3): 293~300