| 铝合金变极性TIG焊工艺特点 |
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| 引用本文： | 耿正,张广军,邓元召,李莉群,殷树言.铝合金变极性TIG焊工艺特点[J].焊接学报,1997,18(4):232-237. |
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| 作者姓名： | 耿正 张广军 邓元召 李莉群 殷树言 |
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| 作者单位： | 哈尔滨工业大学 |
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| 摘 要： |
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| 关 键 词： | 铝合金 TIG焊 变极性电源 阴极清理 钨极烧损 |
| 收稿时间： | 1997/3/9 0:00:00 |
| 修稿时间： | 1997/8/11 0:00:00 |
Processing Property of Variable Polarity power in TIG Arc Welding of Aluminium Alloys |
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| Geng Zheny,Zhang Guangjun,Deng Yuanzhao,Li Liqun and Yin Shuyan.Processing Property of Variable Polarity power in TIG Arc Welding of Aluminium Alloys[J].Transactions of The China Welding Institution,1997,18(4):232-237. |
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| Authors: | Geng Zheny Zhang Guangjun Deng Yuanzhao Li Liqun and Yin Shuyan |
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| Affiliation: | Harbin Institute of Techonlogy,Harbin Institute of Techonlogy,Harbin Institute of Techonlogy,Harbin Institute of Techonlogy and Beijing Polytechnic University |
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| Abstract: | The factors which affect the cleaning action and electrode loss in TIG welding of aluminium alloys using variable palarity power are studied.The process experiment shows that because more welding parameters can be adjusted,the arc shape can be efficiently controlled. By increasing the current value and shortening the time of half cycle in wihch the tungsten polarity is positive, we can change the arc shape from diffusion to focus,and make welding process close to DCEN welding. In this condition,the basic requirement of the cleaning actiou is satisfied,and the loss of tungsten is reduced.By flexibly controlling the weld formation, we can get a satisfied result. |
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| Keywords: | variable polarity power source TIG welding cleaning action electrode loss aluminium alloy |
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