| Numerical simulation of upsetting-extruding process of dispersion strengthened copper welding electrode |
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| 引用本文： | 王孟君 张迎春 黄电源 刘心宇. Numerical simulation of upsetting-extruding process of dispersion strengthened copper welding electrode[J]. 中国有色金属学会会刊, 2007, 17(3): 449-454. DOI: 10.1016/S1003-6326(07)60114-9 |
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| 作者姓名： | 王孟君 张迎春 黄电源 刘心宇 |
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| 作者单位： | [1]School of Materials Science and Engineering, Central South University, Changsha 410083, China; [2]Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China |
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| 摘 要： | The simulation of the upsetting-extruding process ot dispersion strengthened copper welding electrode was carried out using Deform-2D finite element analysis software, and the characteristics of metal flow and the effect of different friction factors were analysed. The results show that the whole forming process consists of a forward extrusion and a backward extrusion. When the friction factor of the female die is 0.4, it is advantageous to the forward extrusion forming of the electrode work nose part, while the friction factor of the male die is only 0.1, it would be benefit to the backward extrusion forming of the electrode fit-up hole part. Addition of a scoop channel with 1.5 mm in depth and 4 mm in diameter at the bottom of the female die can avoid folds at the work nose. The rise in temperature is about 60℃ during the forming process.
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| 关 键 词： | 焊接 铜元素 电极 镦锻 |
| 收稿时间： | 2006-12-01 |
| 修稿时间： | 2006-12-012007-04-02 |
Numerical simulation of upsetting-extruding process of dispersion strengthened copper welding electrode |
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| WANG Meng-jun,ZHANG Ying-chun,HUANG Dian-yuan,LIU Xin-yu. Numerical simulation of upsetting-extruding process of dispersion strengthened copper welding electrode[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(3): 449-454. DOI: 10.1016/S1003-6326(07)60114-9 |
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| Authors: | WANG Meng-jun ZHANG Ying-chun HUANG Dian-yuan LIU Xin-yu |
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| Affiliation: | 1. School of Materials Science and Engineering, Central South University, Changsha 410083, China; 2. Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China |
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| Abstract: | The simulation of the upsetting-extruding process of dispersion strengthened copper welding electrode was carried out using Deform-2D finite element analysis software, and the characteristics of metal flow and the effect of different friction factors were analysed. The results show that the whole forming process consists of a forward extrusion and a backward extrusion. When the friction factor of the female die is 0.4, it is advantageous to the forward extrusion forming of the electrode work nose part, while the friction factor of the male die is only 0.1, it would be benefit to the backward extrusion forming of the electrode fit-up hole part. Addition of a scoop channel with 1.5 mm in depth and 4 mm in diameter at the bottom of the female die can avoid folds at the work nose. The rise in temperature is about 60 °C during the forming process. |
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| Keywords: | dispersion strengthened copper welding electrode upsetting-extruding finite element analysis friction factor |
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