| 旋转电弧横向GMAW接头组织及成形特点 |
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| 引用本文： | 郭宁,林三宝,张亚奇,杨春利.旋转电弧横向GMAW接头组织及成形特点[J].焊接学报,2009,30(8):101-104. |
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| 作者姓名： | 郭宁 林三宝 张亚奇 杨春利 |
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| 作者单位： | 哈尔滨工业大学,现代焊接生产技术国家重点实验室,哈尔滨,150001 |
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| 摘 要： | 旋转电弧横向GMAW可以很好地控制横向焊接时熔池下塌.由于旋转电弧的引入,在相同焊缝长度以及速度下,焊丝运动的轨迹增加,这样就会降低焊接热输入,从而降低焊缝下塌的趋势;另一方面,由于电弧的旋转,使得原本只作用在坡口中心的电弧力分散在坡口内的各个区域,使得电弧力可以抵消上坡口附近熔池金属的重力,抑制其下塌.文中对旋转电弧横向GMAW接头组织及成形进行了研究,发现了由于电弧旋转所产生的接头成形不对称这一特点,并对其产生的原因及机理进行了阐述和分析.
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| 关 键 词： | 横向焊接 接头特点 旋转电弧 |
| 收稿时间： | 2008/6/3 0:00:00 |
Microstructure and formation characteristics of rotating arc horizontal GMAW joint |
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| GUO Ning,LIN Sanbao,ZHANG Yaqi and YANG Chunli.Microstructure and formation characteristics of rotating arc horizontal GMAW joint[J].Transactions of The China Welding Institution,2009,30(8):101-104. |
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| Authors: | GUO Ning LIN Sanbao ZHANG Yaqi and YANG Chunli |
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| Affiliation: | State Key Laboratory of Advanced Welding Production Technique;Harbin Institute of Technology;Harbin 150001;China |
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| Abstract: | Rotating arc horizontal GMAW can solve the dripping of the molten pool in the horizontal welding.The rotating arc process not only can reduce the welding heat input by prolonging the welding path in the some welding distance caused by the arc rotation,but also disperse the arc force to affect the sidewall periodically resulting in supporting the fusion metal near the upper groove.The characteristics of joint formation in rotating arc horizontal GMAW was studied.The asymmetry of the microstructure in the joi... |
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| Keywords: | horizontal welding joint characteristics rotating arc |
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