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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。
In the car alloy wheel casting process, the hot die will have thermal deformation. Under the mold after the deformation will lead to product changes in shape, the front rim of the ultra-poor depth and other issues. Combined with the actual analysis of the deformation of the lower mold, and the use of ANSYS software on the hot die under the finite element simulation analysis. The results show that the lower die tends to swell outward after being heated, and the middle die has a compressive deformation and bulges upwards. Through the use of thermal compensation to divert the way, greatly reducing the amount of deformation of the mold, while improving die life but also improve the overall efficiency.