Determination of the forming tool load in plastic shaping of a round tube into a square tubular section
Determination of the forming tool load in plastic shaping of a round tube into a square tubular section
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DOI：
10.1016/j.jmatprotec.2008.04.047
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发表时间：
2009-02-19
影响因子：
6.3
通讯作者：
Attia, Ahmed S.
中科院分区：
文献类型：
--
作者：
Bayoumi, Laila S.;Attia, Ahmed S.
通过有限元数值模拟和解析方法确定了圆管塑性成形为方管截面时的成形工具载荷。理论结果进行了比较，在测试管试样使用专门设计的试验台模拟实际生产条件下获得的实验测量。比较表明，分析得到的结果是在公平的协议与实验获得的，而有限元模拟结果是一致的，只有在小变形。将解析得到的成形载荷-位移关系应用于预测圆管经四个空转平辊头拉伸成方管截面时的辊力和拉拔力。从这个应用程序中获得的结果被证明是在公平的协议，从以前的更详细的解决方案，建议使用的分析关系，获得直接的工业应用。(C)2008 Elsevier B. V.保留所有权利。
The forming tool load in plastic shaping of a round tube into a square tubular section has been determined analytically and also numerically by applying finite element simulation. The theoretical results were compared to experimental measurements obtained in testing tube specimens using a specially designed test-rig simulating actual production conditions. The comparison has shown that the results obtained analytically were in fair agreement with those obtained experimentally, while the finite element simulation results were in agreement only at small deformation. The shaping load-displacement relationship obtained analytically was applied to predict the roll load and drawing force in drawing a round tube into a square tubular section through a head comprising four idle flat rolls. The results obtained from this application proved to be in fair agreement with those obtained from a previous more elaborate solution, which recommends the use of the analytical relationship, obtained to direct industrial application. (C) 2008 Elsevier B.V. All rights reserved.