| 基于有限元模拟的钼粉末温压成形分析 |
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| 引用本文： | 李 健,张文超.基于有限元模拟的钼粉末温压成形分析[J].稀有金属材料与工程,2009,38(4):659-662. |
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| 作者姓名： | 李 健 张文超 |
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| 作者单位： | 西北工业大学,陕西,西安,710072 |
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| 摘 要： | 为了研究钼粉末温压成形过程,用有限元分析软件建立了钼粉末温压成形的有限元模型,对三维圆柱等截面粉柱温压成形过程进行了有限元数值模拟,从模拟结果得到了最终坯体内部密度和应力等参量的分布情况以及钼粉末颗粒轴向和径向流动规律.实验验证了所建立有限元模型的可靠性,并分析了部分工艺和材料性能参数对钼粉末成形的影响.结果表明:在钼粉末的温压成形过程中,压坯顶部半端面、轴截面和侧壁的相对密度分布等值线和其应力分布等值线非常接近.
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| 关 键 词： | 钼粉 有限元分析法 温压 规律 |
| 收稿时间： | 2008/3/23 0:00:00 |
| 修稿时间： | 1/5/2009 12:00:00 AM |
Warm Compaction Technology of Molybdenum Powder Based on Finite Element Method |
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| Li Jian and Zhang Wenchao.Warm Compaction Technology of Molybdenum Powder Based on Finite Element Method[J].Rare Metal Materials and Engineering,2009,38(4):659-662. |
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| Authors: | Li Jian and Zhang Wenchao |
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| Abstract: | In order to study on the influence of parameters on process of warm compaction of molybdenum powder,a finite element method(FEM) model for molybdenum powder has been established using the elasto-plasticity FEM software.Warm compaction process of three-dimensional(3-D) cylinder was simulated on by FEM.The distributions of the density and the stress inside the compacts,the longitudinal and horizontal flowing of molybdenum particles were investigated by means of the simulation results.The reliability of FEM mo... |
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| Keywords: | molybdenum powder FEM warm compaction technology law |
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