| Similar extrusion and mapping optimization of die cavity modeling for special-shaped products |
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| 作者姓名： | 齐红元 王爽心 朱衡君 |
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| 作者单位： | School of Mechanical and Electric Control Engineering Beijing Jiaotong University Beijing 100044 China，School of Mechanical and Electric Control Engineering Beijing Jiaotong University Beijing 100044 China，School of Mechanical and Electric Control Engineering Beijing Jiaotong University Beijing 100044 China |
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| 摘 要： | 1 Introduction For special-shaped products, similar extrusion is defined as the extruding deformation process which can make geometrical profile of metal arbitrary cross-section in deforming region be mutually similar to that of its original billet. Duri…
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| 关 键 词： | 保角变换 阴模 特殊形状产品 挤塑 优化 模具设计 |
| 收稿时间： | 2005-10-08 |
| 修稿时间： | 2006-03-25 |
Similar extrusion and mapping optimization of die cavity modeling for special-shaped products |
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| QI Hong-yuan,WANG Shuang-xin,ZHU Heng-jun.Similar extrusion and mapping optimization of die cavity modeling for special-shaped products[J].Transactions of Nonferrous Metals Society of China,2006,16(3):587-592. |
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| Authors: | QI Hong-yuan WANG Shuang-xin ZHU Heng-jun |
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| Affiliation: | 1. ABB AB, Corporate Research, SE - 721 78, Västerås, Sweden;2. Mälardalen University, School of Business, Society & Engineering, P.O. Box 883, SE-721 23, Västerås, Sweden;1. Nagoya Industrial Science Research Institute, Department of Research, 2F Noa-Yotsuya Building, 1-13 Yotsuya-dori, Chikusa-ku, Nagoya 464-0819, Japan;2. Functional Materials Laboratory, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan;3. Department of Material Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan;4. Hoseo University, Department of Material Science and Engineering, 165 Sechul-ri, Baebang-myeon, Asan-si, Chungnam 336-795, Republic of Korea;1. The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, PR China;2. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, PR China;1. College of Electrical Engineering and Automation, Anhui University, Hefei, Anhui 230601, China;2. National Engineering Laboratory of Energy-Saving Motor & Control Technology, Anhui University, Hefei 230601, China;3. School of Engineering Science, University of Science and Technology of China, Hefei, Anhui 230027, China;1. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China;2. Key Laboratory of Vehicle Advanced Manufacturing, Measuring and Control Technology (Beijing Jiaotong University), Ministry of Education, Beijing 100044, China;3. The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China;4. National Engineering Laboratory for High-Speed Train, CRRC Qingdao Sifang Co. Ltd., Qingdao 266000, China |
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| Abstract: | Aimed at the modeling issues in design and quick processing of extruding die for special-shaped products, with the help of Conformal Mapping theory, Conformal Mapping function is determined by the given method of numerical trigonometric interpolation. Three-dimensional forming problems are transformed into two-dimensional problems, and mathematical model of die cavity surface is established based on different kinds of vertical curve, as well as the mathematical model of plastic flow in extruding deformation of special-shaped products gets completed. By upper bound method, both vertical curves of die cavity and its parameters are optimized. Combining the optimized model with the latest NC technology, NC Program of die cavity and its CAM can be realized. Taking the similar extrusion of square-shaped products with arc radius as instance, both metal plastic similar extrusion and die cavity optimization are carried out. |
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| Keywords: | extrusion Conformal Mapping forming die cavity special-shaped products |
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