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| STUDY ON THE PROCESS MECHANISOM OF HIGH-SPEED ARC WELDING DE-GMAW |
| ChuanSong Wu |
| 山东大学 |
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Cite this article:
ChuanSong Wu. STUDY ON THE PROCESS MECHANISOM OF HIGH-SPEED ARC WELDING DE-GMAW. Acta Metall Sin, 2007, 43(6): 663-667 .
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Abstract With considering the urgent requirement of high efficiency, high quality, and low consumables welding technologies, a novel high-speed arc welding process of low cost, i.e., DE-GMAW (double electrode-gas metal arc welding), is developed. It attaches a GTAW torch on conventional GMAW equipment to makes part of current flowing through the wire pass the bypass arc between the GTAW torch and the main arc. Thus, under the condition of larger current flowing through the wire to ensure high deposition rate, the heat input exerted on the base metal is decreased to avoid the contradictory which high-speed welding faces with, and high-speed arc welding is realized. A Finite-element analysis model suitable to DE-GMAW process is developed to conduct numerical simulation of temperature and stress-strain fields. The results show that the predicted and measured weld dimensions at cross section match well, and the weld dimension, heat-affected zone width, stress, strain and deformation in DE-GMAW are much lower than those in conventional GMAW under same welding conditions. It provides the basic data for optimize the process parameters in DE-GMAW.
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Received: 16 November 2006
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[1]Guan Q,Lin S Y.Proc New Fusion Weld Technol Appl, Beijing:China Welding Society,2003:11 (关桥,林尚扬．熔焊新技术及应用研讨会论文集,北京:中国焊接学会,2003:11)
[2]Harwig D,Gordon R.Proc 6th Int Conf Trendas in Weld- ing Research,Materials Park,OH:ASM International, 2003:995
[3]American Welding Society.Vision for Welding Industry, 2002
[4]Zhang Y M,Zhang S B,Jiang M.Weld J,2002;81:248s
[5]Savage F,Nipples E F,Agusa K.Weld J,1979;58:212s
[6]Olsson R.Weld Rev Int,1995;14:128
[7]Nguyen T C,Weckman D C,Johnson D A,Kerr H W. Sci Technol Weld Join,2005;10:447
[8]Tusek J.Weld Rev Int,1996;15(8):102
[9]Wu C S,Xu G X,Li K H,Zhang Y M.7th Int Conf Trends in Welding Research,Materials Park,OH:ASM International,2006:814
[10]Feng L.PhD Dissertation,Beijing University of Technol- ogy,2000 (冯雷．北京工业大学博士学位论文,2000) |
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