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首页> 外文期刊>Journal of Materials Engineering and Performance >Influences of Ribs on the Residual Stress and Deformation of Long Stringer Aluminum Alloy Forgings During Quenching
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Influences of Ribs on the Residual Stress and Deformation of Long Stringer Aluminum Alloy Forgings During Quenching

机译：肋骨对淬火期间长纵梁铝合金锻造的残余应力和变形的影响

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摘要

To improve the mechanical properties of aluminum alloy forgings, solution treatment and quenching is necessary. However, it becomes difficult to control the residual stress and deformation after solution treatment and quenching which always results in obtaining a part with an undesirable size, especially for a long stringer forging with an existing rib. Therefore, this paper demonstrates a quenching experiment and residual stress measurements for a ribbed aluminum alloy forging; the calculated results are close to the actual convective heat transfer coefficients. In addition, the heat transfer coefficient is introduced into the quenching simulation of a long stringer forging consisting of rib-web forging and plate forging. The influence of ribs on the residual stress and deformation of the forging is compared and analyzed. The results show that the heat transfer coefficient on the web without a rib is highest and the heat transfer coefficient on the web below the rib is lowest. Compared with the plate forging, the deformation direction of the rib-web forging is opposite, and the deformation of the rib-web forging is obviously increased.
机译：为了改善铝合金锻件的机械性能，溶液处理和淬火是必要的。然而，难以控制溶液处理和淬火后的残余应力和变形，这总是导致获得具有不希望的尺寸的部件，特别是对于长纵梁与现有肋锻造的长纵梁。因此，本文证明了肋状铝合金锻造的淬火实验和残余应力测量;计算结果接近实际的对流传热系数。此外，将传热系数引入淬火模拟，该淬火模拟由肋网锻造和板锻造构成的长纵梁锻造。比较和分析肋骨对锻造残余应力和变形的影响。结果表明，没有肋骨的幅材上的传热系数最高，肋骨下方的传热系数最低。与板锻造相比，肋网锻造的变形方向相反，肋卷材锻造的变形明显增加。

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