铟镍合金用于核燃料组件中定位格架特种条带的制造。针对铟镍合金材料价格昂贵、厚度较薄以及特种条带本身窄长等特点,利用CAE软件模拟冲压成形过程,快速预测冲制过程中条带的回弹、破裂、起皱等变化,为条带冲制用模具的设计提供参考依据。首先研究材料冲压特性;然后分析条带特征,确定冲制工艺方案;最后进行条带冲压成形有限元仿真分析,根据仿真结果优化模具的结构设计。结果表明:厚度为0.2667 mm的铟镍合金料带的冲压适应性较好,仿真冲压件模型没有破裂和起皱的趋势,条带刚凸高度回弹量较大,经过回弹补偿后,最终成形高度接近公称尺寸。依据CAE分析结果优化设计出的模具调试情况良好,能够满足特种条带的冲制加工。 Indium-nickel alloys are used in the manufacture of specialty strips for positioning grids in nuclear fuel assemblies. According to the characteristics of indium-nickel alloy materials such as high cost, thin thickness and special strips themselves, the CAE software is used to simulate the stamping process to quickly predict the rebound, rupture, wrinkling and other changes in the strip during stamping process. With stamping die design provides a reference. Firstly, the stamping characteristics of the material were studied. Then, the strip characteristics were analyzed to determine the process scheme of stamping. Finally, the finite element simulation of strip stamping was carried out. The structural design of the mold was optimized according to the simulation results. The results show that the stamping adaptability of indium-nickel alloy strip with a thickness of 0.2667 mm is good, the simulation stamping part has no tendency of rupturing and wrinkling, the rebound amount of just protruding height of the strip is larger, Forming height close to the nominal size. According to the result of CAE analysis, the mold design optimized is in good condition and can satisfy the special processing of the strip.