| C70型车箱端墙焊缝缺陷分析与控制 |
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| 引用本文： | 徐益,程里. C70型车箱端墙焊缝缺陷分析与控制[J]. 热加工工艺, 2006, 0(4) |
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| 作者姓名： | 徐益 程里 |
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| 作者单位： | 西南交通大学教育部先进材料技术重点实验室，重庆工学院材料工程学院 四川成都610031 重庆工业职业技术学院，重庆400050，重庆400083 |
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| 摘 要： | C70型车箱端墙焊缝在进行矫正直立部分弯曲角度时,发生焊缝崩断现象。对焊接工艺、焊缝化学成分及焊缝过渡区宏观、微观形貌分析表明:焊缝崩断的主要原因在于焊接工艺存在明显的问题,导致焊缝未熔合。采用两次焊、降低焊接电压,有效杜绝了焊缝崩断现象。
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| 关 键 词： | 车箱焊缝 CO2保护焊 未熔合焊缝 |
Control and Analyse of Welding Line Defect in C70-type Vehicle Trunk Wall |
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| XU Yi,,CHENG Li. Control and Analyse of Welding Line Defect in C70-type Vehicle Trunk Wall[J]. Hot Working Technology, 2006, 0(4) |
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| Authors: | XU Yi CHENG Li |
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| Affiliation: | XU Yi1,2,CHENG Li 3 |
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| Abstract: | Welding line was broke off during rectifying welding distort.Welding process,chemical composition of welding line, macroscopic and microscopic appearance of welding line transition zone was analyzed.It shows that welding line break-off results from unreasonable welding process . Employing the process of welding twice and lower welding voltage can avoid this un-melting welding line defect . |
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| Keywords: | vehicle trunk welding line CO2 protecting weld un-melting welding line |
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