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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science >Three-dimensional finite element analysis of effects of roller intervals on tool forces and wall thickness in stagger spinning of thin-walled tube
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Three-dimensional finite element analysis of effects of roller intervals on tool forces and wall thickness in stagger spinning of thin-walled tube

机译：薄壁管交错旋转中辊距对工具力和壁厚影响的三维有限元分析

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摘要

Roller intervals are the key parameters of the stagger spinning process, which affect the shape accuracy and productivity of the products. In this article, the effects of different roller intervals in axial and radial directions on tool forces, wall thickness, and strain and stress variations in stagger spinning have been analyzed numerically by the finite element analysis. The results show that with the increasing of the axial roller intervals, the differences between tool force components (axial, radial, and tangential) become lower at first, and then have the trend to be higher. The similar phenomenon on tool force occurs when the radial interval of roller 3 increases and that of roller 2 decreases. Wall thickness variations are mainly affected by axial roller intervals; the bigger the axial intervals are, the higher the variations of wall thickness that would be seen. Meanwhile, the real reductions of wall thickness are mainly affected by radial roller intervals. When the radial interval of roller 3 is larger than that of roller 2, there would be a higher real wall thickness reduction.
机译：辊距是交错纺纱工艺的关键参数，它影响产品的形状精度和生产率。在本文中，通过有限元分析，数值分析了轴向和径向上不同的辊距对工具力，壁厚以及交错旋转中应变和应力变化的影响。结果表明，随着轴向滚子间隔的增加，工具力分量（轴向，径向和切向）之间的差异首先减小，然后又有增大的趋势。当辊子3的径向间隔增大而辊子2的径向间隔减小时，也会发生类似的工具力现象。壁厚变化主要受轴向滚子间隔的影响;轴向间隔越大，可以看到的壁厚变化就越大。同时，壁厚的实际减小主要受径向滚子间隔的影响。当辊子3的径向间隔大于辊子2的径向间隔时，实际壁厚的减小将更大。

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