低压铸造铝车轮模具下模热变形补偿技术研究

发布时间：2018-06-25 01:41

本文选题：铝合金轮毂 + 模具　；参考：《铝加工》2016年06期

【摘要】：在汽车铝合金轮毂铸造过程中,热态下模具会产生热变形。下模热变形后会导致产品造型变化、正面轮辋深度超差等问题。结合实际分析了下模的变形规律,并采用ANSYS软件对热态下的下模进行有限元模拟分析研究。结果表明下模在受热后有向外膨胀变形的趋势,下模中间支撑产生了压缩变形,向上凸起。通过采用疏导热变形的补偿方式,大大降低了模具的变形量,在提高模具寿命的同时也提高了综合效益。
[Abstract]:During the casting process of automobile aluminum alloy wheel hub, the die will have hot deformation in the hot state. After the hot deformation of the lower die, the change of the product shape and the depth of the front rim will be caused. The deformation law of the lower die is analyzed by the actual analysis, and the finite element simulation analysis is carried out on the lower die under the hot state with the ANSYS software. The results show that the lower die is subjected to heat. With the trend of outward expansion and deformation, the middle support of the lower die produces the compression deformation and uplift. By adopting the compensation method of guiding thermal deformation, the deformation of the die is greatly reduced and the comprehensive benefit is raised while the die life is raised.
【作者单位】：中信戴卡股份有限公司;
【分类号】：TG292

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