| Simulation on Dynamic Characteristic of Negative Resistance Arc in Pulsed TIG Welding |
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| 作者姓名： | 杨立军 韩蓬勃 董天顺 张健 徐立城 |
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| 作者单位： | School of Material Science and Engineering Tianjin University，School of Material Science and Engineering Tianjin University，School of Material Science and Engineering Hebei University of Technology，School of Material Science and Engineering Tianjin University，School of Material Science and Engineering Tianjin University，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300130 China，Tianjin 300072 China，Tianjin 300072 China |
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| 基金项目： | 国家自然科学基金;天津市自然科学基金 |
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| 摘 要： | The current waveform that can be modified inpulsed TIG welding results in such advantages as lowheat input and accurate control of the arc energy dis-tribution, which is in favor of obtaining high qualitywelding seam and easy to execute all-position weldi…
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| 关 键 词： | 脉冲电流 TIG焊接 焊接弧 负阻弧 模拟 动力特性 |
| 收稿时间： | 2006-09-25 |
Simulation on Dynamic Characteristic of Negative Resistance Arc in Pulsed TIG Welding |
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| YANG Lijun,HAN Pengbo,DONG Tianshun,ZHANG Jian,XU Licheng.Simulation on Dynamic Characteristic of Negative Resistance Arc in Pulsed TIG Welding[J].Transactions of Tianjin University,2007,13(1):62-66. |
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| Authors: | YANG Lijun HAN Pengbo DONG Tianshun ZHANG Jian XU Licheng |
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| Abstract: | A mathematical model is established on the basis of the physical characteristic of the negative resistance arc when a low current of 0-50 A is applied in pulsed TIG welding. The simulation model converted from the mathematical model is run in MATLAB environment, and the discussion is focused on the way the peak current ranging from 29 A to 50 A and the time constant of arc in the span of 0. 003-0. 006 s influence the simulating results and the dynamic characteristic. The simulating data are close to that of welding experiments and correspond to the theoretical conclusion. |
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| Keywords: | pulsed TIG welding negative resistance arc mathematical model dynamic characteristic computer simulation |
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