中文摘要：

以便通过试验性、数字的途径调查增长的表形成的过程(ISF ) ，一个三维的 elasto 塑料的有限元素模型(女性) 被开发模仿这个过程，模仿的结果与实验的那些相比。数字模拟的结果例如紧张历史和分发，压力状态和分发，表厚度分发，等等，在这些结果上的过程参数的细节，和影响被讨论也被分析。光线的紧张和厚度分发的模仿的结果在对试验性的结果的好同意。模拟表明变丑在工具附近是局部性的，常常，遗体关门到一个飞机紧张状态。与减少的深度步，增加工具直径和墙倾斜角度，轴的压力还原剂，导致变瘦的更少和更同类的塑料紧张和厚度分发。在 ISF 期间，塑料紧张增加在工具的行动下面逐步。塑料紧张的每增加被静水力学的压力伴随，它解释可获得的变丑使用 ISF 为什么超过常规表形成的形成的限制。

英文摘要：

In order to investigate the process of incremental sheet forming （ISF） through both experimental and numerical approaches, a three-dimensional elasto-plastic finite element model （FEM） was developed to simulate the process and the simulated results were compared with those of experiment. The results of numerical simulations, such as the strain history and distribution, the stress state and distribution, sheet thickness distribution, etc, were discussed in details, and the influences of process parameters on these results were also analyzed. The simulated results of the radial strain and the thickness distribution are in good agreement with experimental results. The simulations reveal that the deformation is localized around the tool and constantly remains close to a plane strain state. With decreasing depth step, increasing tool diameter and wall inclination angle, the axial stress reduces, leading to less thinning and more homogeneous plastic strain and thickness distribution. During ISF, the plastic strain increases stepwise under the action of the tool. Each increase in plastic strain is accompanied by hydrostatic pressure, which explains why obtainable deformation using ISF exceeds the forming limits of conventional sheet forming.