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| 精密金属异型挤压塑性成形及模腔优化共形解析 | |
| 引用本文： | 齐红元,朱衡君,邱成,杜凤山,刘才,齐红宇.精密金属异型挤压塑性成形及模腔优化共形解析[J].机械工程学报,2002,38(12):75-78. |
| 作者姓名： | 齐红元 朱衡君 邱成 杜凤山 刘才 齐红宇 |
| 作者单位： | 1. 北方交通大学机电工程学院,北京,100044 2. 燕山大学 3. 北京航空航天大学 |
| 基金项目： | 国家自然科学基金资助项目(50075076) |
| 摘 要： | 针对异型材挤压塑性成形及模腔建模理论的焦点课题,借助近代复变共形映射理论和金属塑性成形理论成果,将三维金属异型材挤压塑性流动问题转化为二维轴对称成形问题,求解了金属异型塑性流动的流函数、速度场及应变速度场等数学解析模型,建立了金属异型挤压塑性流动通用的三维解析方法。应用能量极值原理,求解了异型材挤压成形及优化模腔工程建模的理论课题。 |
| 关 键 词： | 异型材 挤压 模腔 塑性成形 |
| 修稿时间： | 2001年8月27日 |
CONFORMAL ANALYSIS OF METAL PLASTIC DEFORMATION AND OPTIMIZED DIE CAVITY IN EXACT SPECIALSHAPED EXTRUSION |
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| Qi Hongyuan Zhu Hengjun Qiu Cheng.CONFORMAL ANALYSIS OF METAL PLASTIC DEFORMATION AND OPTIMIZED DIE CAVITY IN EXACT SPECIALSHAPED EXTRUSION[J].Chinese Journal of Mechanical Engineering,2002,38(12):75-78. | |
| Authors: | Qi Hongyuan Zhu Hengjun Qiu Cheng |
| Abstract: | Aimed at the focus tasks in plastic deforming theory and modeling of die cavity for exact special-shaped product extrusion, in virtue of the theories in conformal mapping of Complex function and metal plastic deforming, three-dimension plastic stream of matal special-shaped product extrusion is transformed into two-dimension axis-symmetry model. Hence, the mathematical models of stream function, velocity field and strain rate field etc are obtained for metal plastic stream, and universal three-dimension analysis method for metal special-shaped extrusion is established as well. Meanwhile, by utilizing the principle of energy extreme value, above theoretical tasks for special-shaped product extrusion deformation and optimized engineering modeling of die cavity get solved. |
| Keywords: | Special-shaped product Extrusion Die cavity Plastic deformation |
| 本文献已被 万方数据 等数据库收录！ | |
