| 半球形件冲压成形的防内皱压边力研究 |
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| 引用本文： | 陶友瑞,张福全,黄长清.半球形件冲压成形的防内皱压边力研究[J].塑性工程学报,2004,11(1):29-31. |
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| 作者姓名： | 陶友瑞 张福全 黄长清 |
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| 作者单位： | 1. 湖南大学,材料学院,长沙,410082;湖南工程学院,机械系,湘潭,411104
2. 湖南大学,材料学院,长沙,410082 |
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| 摘 要： | 本文利用板壳理论中板屈曲的能量原理 ,建立了半模型球形件冲压成形中防内皱压边力模型 ,模型即公式(12 )。得出影响防内皱压边力Q的因素有 :摩擦系数 μ、凹模内径r1、板料厚度t、材料屈服强度σs 及取决于凸模行程的系数 f。文中给出了防内皱压边力的变化曲线 ,实验证实该模型符合实际情况 ,对于生产有一定的理论指导意义。
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| 关 键 词： | 板料成形 皱曲 模型 |
| 文章编号： | 1007-2012(2004)01-0029-03 |
| 修稿时间： | 2003年5月5日 |
Investigation for critical side-wall wrinkle BHF of the hemisphere-shaped workpiece in the process of stamping |
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| TAO You-rui , ZHANG Fu-quan HUANG Chang-qing.Investigation for critical side-wall wrinkle BHF of the hemisphere-shaped workpiece in the process of stamping[J].Journal of Plasticity Engineering,2004,11(1):29-31. |
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| Authors: | TAO You-rui ZHANG Fu-quan HUANG Chang-qing |
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| Affiliation: | TAO You-rui 1,2 ZHANG Fu-quan1 HUANG Chang-qing1 |
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| Abstract: | On the basis of the energy method in the shell theory,a critical side-wall wrinkle BHF(blank holding force) model of the hemispherical workpieces in the stamping process was established (be formula(12)), where Q the BHF,μ the friction coefficient,r 1 the radius of die, t the thickness of blank,σ s the yield strength and f the factor ,which was determined by the punch travel. The theoretical BHF curve of critical side-wall wrinkle was also provided in the paper and was in good agreement with the experimental results, demonstrating that this model could offer the necessary theoretical basis for engineering practices. |
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| Keywords: | sheet-metal forming wrinkling model |
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