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材料工程  2015, Vol. 43 Issue (2): 20-25    DOI: 10.11868/j.issn.1001-4381.2015.02.004
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
S355J2W+N钢激光-MAG复合焊与MAG焊对比
谷晓鹏1, 段珍珍2, 邓钢2, 谷晓燕1
1. 吉林大学 材料科学与工程学院, 长春 130022;
2. 长春轨道客车股份有限公司, 长春 130062
Comparison Between Laser-MAG Hybrid Welding and MAG Welding of S355J2W+N Steel
GU Xiao-peng1, DUAN Zhen-zhen2, DENG Gang2, GU Xiao-yan1
1. College of Materials Science and Engineering, Jilin University, Changchun 130022, China;
2. Changchun Railway Vehicles Co., Ltd., Changchun 130062, China
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摘要 利用激光-MAG复合焊和MAG焊进行了厚板S355J2W+N低碳钢的焊接实验,分析了两种焊接方法接头的微观组织和力学性能.结果表明:复合焊和MAG焊焊缝接头均由焊缝区、过热区、重结晶区和不完全重结晶区构成,复合焊接头截面呈"高脚杯"状特点,焊缝填充量和热影响区宽度较MAG焊明显减小.复合焊由于冷却速率快,过热区魏氏组织略有增多,硬度高于MAG焊,抗拉强度和弯曲性能与MAG焊相比,无显著差异,均能够满足生产标准的要求.
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谷晓鹏
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邓钢
谷晓燕
关键词 S355J2W+N激光MAG复合焊接头组织性能    
Abstract:Welding research on thick low carbon steel plate of S355J2W+N was done by using laser-MAG hybrid and MAG welding. Microstructure and mechanical properties of the joints were analyzed. The results show that the hybrid and MAG welded joint is composed of welding seam zone, over-heated zone, annealed zone and local annealed zone. The cross-section of hybrid welded joint shows a goblet appearance and the wire accumulation and width of HAZ are significantly reduced compared with MAG welding. The Widmanstaten structure in over heated zone increases a little bit due to fast cooling speed in hybrid welding. The hardness is higher than that of MAG welding. There is no significant difference in the tensile strength and bending property between hybrid welded joint and MAG welded joint. The tensile strength and bending property of hybrid welded joints and MAG welded joints both meet production standards.
Key wordsS355J2W+N    laser    MAG    hybrid welding    joint microstructure    property
收稿日期: 2013-06-27     
1:  TG456.7  
通讯作者: 谷晓燕(1979-),女,副教授,博士,研究方向为材料焊接,联系地址:长春市人民大街5988号,吉林大学材料学院(130022), E-mail: guxy@jlu.edu.cn     E-mail: guxy@jlu.edu.cn
引用本文:   
谷晓鹏, 段珍珍, 邓钢, 谷晓燕. S355J2W+N钢激光-MAG复合焊与MAG焊对比[J]. 材料工程, 2015, 43(2): 20-25.
GU Xiao-peng, DUAN Zhen-zhen, DENG Gang, GU Xiao-yan. Comparison Between Laser-MAG Hybrid Welding and MAG Welding of S355J2W+N Steel. Journal of Materials Engineering, 2015, 43(2): 20-25.
链接本文:  
http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2015.02.004      或      http://jme.biam.ac.cn/jme/CN/Y2015/V43/I2/20
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