锻压技术

Fe/Al复合管液压胀形数值模拟及试验研究

英文标题：FE Simulation and practice of the hydro-bulging process for Fe/Al clad tube T-shape

作者：孙显俊陶杰郭训忠张立伍

关键词：复合管三通管液压胀形数值模拟

分类号：TG386.43

出版年,卷(期):页码：2010,35(3):66-70

摘要：

为研究液压胀形过程中双金属复合管件的成形性能，利用有限元模拟方法对Fe/Al双金属复合管液压胀形进行了计算。研究了内压和摩擦对复合三通管件减薄率分布的影响，并比较了纯铁层和纯铝层之间的壁厚减薄率分布差异。根据数值模拟计算的结果，对Fe/Al双金属复合管进行了成形试验研究。研究结果表明，成形过程中纯铁层和纯铝层之间结合良好，通过调节摩擦系数和内压力大小可以控制Fe/Al双金属复合正三通管件的成形质量。

In order to explore the formability of Fe/Al clad tube in hydro\|bulging process, the finite element method（FEM） was used. The distribution of the thinning ratio of wall at different fluid pressures and friction coefficients was discussed by numerical simulation and the difference of thinning ratio distribution between the pure Fe layer and pure Al layer was found out. With the help of the calculated results, the hydro-bulging process was performed and the Fe/Al clad tube T-shape was fabricated successfully. The results show that the bonding of the interface of Fe/Al clad tube is well, and the quality improvement of the Fe/Al clad tube T-shape can be achieved by regulating the fluid pressure and friction coefficient.

基金项目：

江苏省重大成果转化专项基金资助项目(BA2006067)

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