High Speed CO₂ Arc Welding Based on Constant Power Control

Abstract:

The experiments were performed with the self-made inverter power source of CO₂ arc welding under constant power control and constant voltage control. Electrical signals in welding process were analyzed by Hanover analyzer and Matlab software, and the effects of the two control methods on welding stability and arc energy were compared. The results show that the weld appearance under constant voltage control is worse due to less energy in arc burning period, the method of constant power control increases the arc energy effectively and improves weld formation and welding stability.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 1048-1051
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.1048
• Online since: August 2011
• Authors: Huan Ming Chen
• Keywords: CO₂ Arc Welding, Constant Power, Current Waveform Control, Power Source

References

[1] Jiaxiang Xue, Guohua Yang and Zhenmin Wang: Transactions of China Welding Institution. Vol. 27, No. 10 (2006), pp.49-52. In Chinese.

[2] Min Zeng, Biao Cao and Shisheng Huang: Journal of Shanghai Jiaotong University. Vol. 38, No. 7 (2004), pp.1076-1080. In Chinese.

[3] Pengfei Huang and Jia Liu: Mater. Sci. & Tech. Vol. 12, No. 5(2004), pp.471-475. In Chinese.

[4] Xueming Hua, Yixiong Wu and Yong Zhang: Journal of Shanghai Jiaotong University. Vol.43, No. 5 (2009), pp.697-699. In Chinese.