| 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, 35(15): 71-72 |
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| 作者姓名： | 徐益 程里 |
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| 作者单位： | 1. 西南交通大学教育部先进材料技术重点实验室,四川,成都,610031;重庆工业职业技术学院,重庆,400050
2. 重庆工学院,材料工程学院,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 |
| 文章编号： | 1001-3814(2006)15-0071-02 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-06-12 |
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, 35(15): 71-72 |
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| Authors: | XU Yi CHENG Li |
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| Affiliation: | 1. Key Lab. of Advanced Materials Technology of Education Ministry, Southwest Jinotong University, Chengdu 610031, China; 2.Chongqing Industry Polytechnic College, Chongqing 400050, China; 3.College of Mater. Eng., Chongqing Institute of Technology, Chongqing 400083,China |
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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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