锻压技术

变速变载条件下Inconel带材的成形性能

英文标题：Formability of indiumnickel alloy sheets under the condition of variable speed and variable loading

作者：毛建中郭灵智宋建力

分类号：TG386.2

出版年,卷(期):页码：2017,42(6):33-38

摘要：

Inconel铟镍合金是核电设备中燃料组件格架条带的常见原材料。为了提高核燃料组件格架条带产品的冲制质量，对铟镍合金板料冲压成形性能进行了研究。针对该材料价格昂贵和各向异性明显的特点，采用有限元方法进行分析。首先通过试验方法得到材料力学性能参数，再利用有限元模拟分析在变速变载条件下铟镍合金的成形性能。研究了冲压成形速度、速度模式、压边力大小和载荷模式对铟镍合金成形性能的影响。最后通过模具冲制试验结果分析验证了有限元模拟分析的正确性。结果表明：通过有限元数值模拟分析更加了解了铟镍合金板料冲制性能，并为格架条带冲制提供了工艺参数。

The indium nickel alloy Inconel is a common raw material of grid straps for fuel assemblies in nuclear power plants. In order to improve the product quality, the stamping formability of the indiumnickel alloy sheet was studied. In view of the expensive and anisotropic characteristics of the indiumnickel alloy, the forming properties of indiumnickel alloy were studied by finite element numerical simulation. First, the mechanical properties of materials were obtained by the experimental method. Then, the forming properties of indiumnickel alloy under the condition of variable speed and variable loading were simulated by finite element method, and the influences of forming speed, velocity mode, blank holder force and load mode on the forming properties of indiumnickel alloy were analyzed. Finally, the correctness of numerical simulation was verified by die stamping test. The results show that the analysis of finite element numerical simulation gives a deep understanding of the formability of indium nickel alloy sheet and provides the technological parameters for the stamping process of grid straps.

基金项目：

大型先进压水堆核电站重大科技专项（2013ZX06004009）

毛建中（1963-），男，博士，教授郭灵智（1992-），男，硕士研究生

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