轮辋的断面形状很复杂,其断面形状对垂直轴和水平轴都是不对称的,右侧有较高的弯腿,左侧有斜度很小的沟槽(头)。在掌握轮辋的生产过程中,我们遇到了很多困难,经过反复试验和修改孔型,才找到合理的孔型系统和设计方法。解放型轮辋在轧制中改进的次数最多,具有代表性,本文主要是总结解放型 The shape of the cross section of the rim is very complicated. The shape of the cross section of the rim is asymmetric to both the vertical axis and the horizontal axis. The right side has a higher bent leg and a groove (head) with a small slope on the left side. In mastering the rim of the production process, we encountered many difficulties, after repeated experiments and modify the hole, to find a reasonable hole system and design methods. Liberated rims in rolling the most improved, representative, this article is to summarize the liberation