Influence of pulse current waveform on mechanical properties of Tandem double wire MIG welding

被引：0
|
作者：
Xue J. [1 ]
Lin F. [1 ]
Jin L. [2 ]
Hu Y. [1 ]
机构：
[1] South China University of Technology, Guangzhou
[2] Guizhou Minzu University, Guiyang
来源：
Hanjie Xuebao/Transactions of the China Welding Institution | 2019年 / 40卷 / 12期
关键词：
Grain refinement; Pulse current waveform modulation; Pulsed MIG welding; Tensile strength;
D O I：
10.12073/j.hjxb.2019400305
中图分类号：
学科分类号：
摘要：
As an efficient welding method for stainless steel, double wire pulse MIG welding is one of the hot spots in welding industry. However, how to select and adjust the current waveform parameters of double wire MIG welding is still a difficulty. In order to optimize the welding method of stainless steel and improve the welding efficiency, duplex stainless steel was used as the welding workpiece. The welding quality of duplex stainless steel was studied by comparing the parameters of current waveform through the research on the double wire trapezoidal wave double pulse welding, double wire rectangular wave double pulse welding and double wire single pulse welding. The results showed that under the condition of the same line energy, the double-wire trapezoidal wave double pulse welding had better stability than the double-wire rectangular wave double-pulse welding and the double-wire single-pulse welding, and the welding quality of the former was higher, and it could be seen more fish scales, while significantly increasing the tensile strength, hardness and toughness of stainless steel joints. © 2019, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
引用
收藏
页码：6 / 10
页数：4
相关论文
共 11 条
  • [1] Cui S.W., Shi Y.H., Sun K., Et al., Microstructure evolution and mechanical properties of keyhole deep penetration TIG welds of S32101 duplex stainless steel, Materials Science Engineering, 709, pp. 214-222, (2018)
  • [2] Yao P., Zhou K., Zhu Q., Quantitative evaluation method of arc sound spectrum based on sample entropy, Mechanical Systems and Signal Processing, 92, pp. 379-390, (2017)
  • [3] Niu Y., Xue H., Li H., Et al., Influence of pulse voltage peak on double-filament pulse MIG welding droplet transfer and weld formation, Transactions of the China Welding Institution, 31, 1, pp. 50-54, (2010)
  • [4] Wen Y., Huang S., Wu K., Et al., The influence of phase relationship of pulsed double wire MAG welding current on forming, Transactions of the China Welding Institution, 31, 9, pp. 17-20, (2010)
  • [5] Yao P., Xue J., Zhu Q., Et al., Quantitative evaluation of double wire pulsed welding stability based on probability density distribution, Transactions of the China Welding Institution, 35, 7, pp. 51-54, (2014)
  • [6] Wu K., He Z., Liang C., Et al., Double-pulse welding method for MIG welding, Transactions of the China Welding Institution, 38, 5, pp. 53-57, (2017)
  • [7] Wang L.L., Heng G.C., Chen H., Et al., Methods and results regarding sinusoid modulated pulse gas metal arc welding, Scripta Materialia, 86, pp. 1841-1851, (2016)
  • [8] Mathivanan A., Devakumaran K., Senthil Kumar A., Comparative study on mechanical and metallurgical properties of AA6061 aluminum alloy sheet weld by pulsed current and dual pulse gas metal arc welding processes, Materials and Manufacturing Processes, 29, 8, pp. 941-947, (2014)
  • [9] Emami S., Saeid T., Khosroshahi R.A., Microstructural evolution of friction stir welded SAF 2205duplex stainless steel, Journal of Alloys and Compounds, 739, pp. 678-689, (2018)
  • [10] Shi Y.H., Cui S.W., Zhu T., Et al., Microstructure and intergranular corrosion behavior of HAZ in DP-TIG welded DSS joints, Journal of Materials Processing Technology, 256, pp. 254-261, (2018)
12