基于铝硅合金的一体化纵梁和塔架浇铸系统的设计与优化

Li Heng, Wang Nan, Xingyu Teng, Chai Zhen, Xiaoyong Zhu, Yucheng Wu
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引用次数: 0

摘要

本研究优化了铝合金纵梁和塔架部件的一体化压铸工艺,无需使用热处理铝合金。利用材料特性和零件几何形状,设计了浇注系统,并通过模流分析加以改进。这优化了速度、温度分布和空气截留,以减少收缩气孔等缺陷。优化后的浇注参数为 695 °C 熔体温度、210 °C 初始模具温度和 4.9 m/s 的注射速度。与最初的脱模相比,收缩气孔减少了 10.4%。使用优化浇注系统进行的压铸试验生产出了无缺陷铸件。压铸件关键承载部分的屈服强度为 184 兆帕,伸长率为 10.9%,可以满足生产要求。总之,在通过模流分析优化浇注系统的基础上,通过开发铝合金一体化压铸工艺,不仅消除了缺陷,还生产出了具有足够机械性能的铸件。
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Design and Optimization of Casting System for Integrated Longitudinal Beam and Tower Package Based on Al-Si Alloy
This study optimized the integrated die-casting of an aluminum alloy longitudinal beam and tower component using no heat-treated aluminum alloy. Leveraging material properties and part geometry, a pouring system was designed and refined through mold flow analysis. This optimized the velocity, temperature distribution, and air entrapment to reduce defects like shrinkage porosity. The optimized pouring parameters were 695 °C melt temperature, 210 °C initial mold temperature, and 4.9 m/s shot speed. This reduced shrinkage porosity by 10.4% versus the original de-sign. Die-casting trials with the optimized pouring system produced defect-free castings. The critical load-bearing section of the die casting had a yield strength of 184 MPa and elongation of 10.9%, which can meet the production requirements. In summary, based on the optimization of pouring system by mold flow analysis, by developing the integrated die casting process for aluminum alloy, not only are the defects eliminated, but also the castings with sufficient mechanical properties are produced.
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