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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Numerical and experimental investigations of the hot stamping process for complex aircraft skin parts composed of TA32 high-temperature titanium alloy using an Arrhenius-type constitutive model
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Numerical and experimental investigations of the hot stamping process for complex aircraft skin parts composed of TA32 high-temperature titanium alloy using an Arrhenius-type constitutive model

机译：Arhenius型本构模型由TA32高温钛合金组成的复杂飞机皮肤部件的热冲压工艺的数值和实验研究

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摘要

A type of simulation model for a hot stamping forming process was developed for TA32 high-temperature titanium alloy to study the fracture of a complex aircraft skin by using the forming limit stress diagram (FLSD) as a tool to evaluate the formability. After derivation, the theoretical FLSD of TA32 in the hot forming process is strain rate-dependent and temperature-dependent, which is understood fromthe constitutive relationship of anArrhenius-type model. Different stress states were used in this study to evaluate the quality of forming via FLSDs. The results show that the materials develop a resistance to fractures in response to an increase in temperature and a decrease in the formation speed. The predicted results also show that the shape of the blank is an important factor that affects part forming. Tests were performed on the TA32 high-temperature titanium alloy to investigate the effects of the processing parameters and the blank shapes. Several indicators were used to assess forming with respect to the thickness distributions in the safe and dangerous areas by comparing the results of the simulations and experiments. Finally, tensile tests under different states were used to indicate that the experimental and simulation results meet practical engineering requirements.
机译：为TA32高温钛合金开发了一种用于热冲压成形过程的模拟模型，用于研究复杂飞机皮肤的骨折，通过使用成型极限应力图（FLSD）作为评估成形性的工具。在衍生之后，热成形过程中的Ta32的理论FLSD是应变率依赖性和温度依赖性，其依赖于Anarhenius型模型的本构关系。本研究中使用了不同的应力状态以评估通过FLSDS形成的质量。结果表明，该材料响应于温度的增加和地层速度的减少而产生对骨折的抵抗力。预测结果还表明坯料的形状是影响部分形成的重要因素。在Ta32高温钛合金上进行测试，以研究加工参数和空白形状的影响。通过比较模拟和实验的结果，使用了几种指标在安全和危险区域中的厚度分布进行评估。最后，使用不同状态下的拉伸试验表明实验和仿真结果符合实用的工程要求。

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