The dynamic behavior of double arc interference in high-power double wire pulsed GMAW. Issue 9 (February 2017)

• Record Type: Journal Article
• Authors: Wu, Kaiyuan; He, Zuwei; Liang, Zhuoyong; Cheng, Jia
• Is Part Of: International journal of advanced manufacturing technology. Volume 88:Issue 9/12(2017)
• Page Start: 2795
• Page End: 2802
• Publication Date: 2017-02
• Subjects: Double wire pulsed GMAW -- High-power -- Double arc interference -- High-speed photography; Manufacturing processes -- Periodicals; Production engineering -- Periodicals; 670.427
• DOI: 10.1007/s00170-016-8916-6
• Languages: English
• ISSNs: 0268-3768

Abstract

Abstract High-power double wire pulsed gas metal arc welding (GMAW) exhibits higher welding efficiency than traditional double wire pulsed GMAW. However, severe interference caused by the high-power double arc impairs welding stability. Based on the analysis of the double arc interference forming principle, two phase modes were examined in this study: the alternating phase mode and the synchronous phase mode. In both phase modes, the welding arc voltage and current were recorded, and double arc profiles were also achieved using the high-speed photographic system. Comparison of the experimental results showed that in high-power welding, the electric arc processes produced superior arc stiffness in synchronous phase mode compared to the alternating phase mode, and the magnetic blow was alleviated. Therefore, it can be concluded that the double arc interference in the alternating phase mode was more severe, while the double arc interference in the synchronous phase mode was significantly reduced.