中文摘要：

试验性死在表金属上形成的稳固的小粒媒介的仪器被设计并且生产。典型部分，例如圆锥形，寓言，圆柱并且 square-box-shaped 部件，成功地 trial-produced 也。根据剖面图形状和墙厚度的变化趋势的分析在这个过程期间，表金属的免费变丑地区的形状，是最批评的变瘦区域，能被描述为一顶近似球形的帽子，这能被发现。根据这个形成的特征，支持深与在表金属上中等的稳固的小粒拉技术的压力被建议制止通过稳固的小粒媒介，背压力 tringle 和表的联合磨擦效果的在部分的底部的激烈的变瘦金属。因此，表金属的深绘画限制显著地被改进。以便与大绘画比率和复杂剖面图制作薄墙的旋转部分，一个有限元素模型基于稳固的小粒媒介的材料性质测试被建立深绘画优化背压力的计划。从背压力负担和空白的成立控制的途径的表金属的形成的性能上的效果通过这个模型被分析。

英文摘要：

The experimental die apparatus of the solid granules medium forming on sheet metal was designed and manufactured.Typical parts,such as conical,parabolic,cylindrical and square-box-shaped components,were successfully trial-produced as well.According to the analysis of the changing trends of the cross-section shape and the wall thickness during the process,it can be found that the shape of the free deformation zone of the sheet metal,which is the most critical thinning area,can be described as an approximately spherical cap.According to this forming feature,back pressure deep drawing technology with solid granules medium on sheet metal was proposed to restrain drastic thinning at the bottom of the part through the joint friction effect of solid granules medium,the back pressure tringle and the sheet metal.Therefore,the deep drawing limit of the sheet metal is significantly improved.In order to fabricate thin-walled rotary parts with great drawing ratio and complex cross-sections,a finite element model based on the material property test of the solid granules medium was established to optimize the scheme of the back pressure deep drawing.The effects on the forming performance of sheet metal from back pressure load and the approach of blank holding control were analyzed through this model.