有间隙双层球罐整体无模成形技术的实验研究

THE EXPERIMENTAL RESEARCH OF INTEGRAL HYDRO BULGE FORMING OF DOUBLE LAYER GAP SPHERICAL VESSELS

本文提出了有间隙双层球罐的整体无模成形技术，并通过实验获得了成功。本文对该技术的可行性进行了实验探讨；对壳体的结构设计、材料选择、加载方式、实验测试方法进行了研究；对内层为不锈钢，外层为低碳钢的有间隙双层球壳成形过程进行了应变测试分析；对胀形前后的壁厚分布及直径变化进行了探讨研究，并用非线性有限元法对壳体的胀形过程进行了模拟分析，指出了有间隙双层球罐的应用前景。

The integral hydro-bulge forming of double-layer gap spherical vessels is advanced in this paper.The feasibility of the technique is investigated,The structure design,the material choice,the loading ment method.And also the application prospect of the technology is pointed out.