Abstract
Narrow-gap triple-wire gas indirect arc (TW-GIA) welding is a novel process. Previous studies have reported the process and explained how the wire arrangement affects the arc behavior and the metal transfer which correspondingly affect the sidewall fusion. In this paper, effects of process parameters on sidewall fusion, weld bead formation, microstructure, and hardness are studied, to reveal more characteristics of the narrow-gap TW-GIA. Results show that welding currents affect the sidewall penetration more significantly than groove gap and welding speed. In addition, sidewall penetration increases with larger welding currents. The heat affected zone (HAZ) width decreases with lower welding current, wider groove gap, or higher welding speed. With all the parameters, weld beads produced by narrow-gap TW-GIA present convex surfaces, which can lead to serious incomplete fusion at the weld root for the next weld layer. To solve this problem, addition of a gas tungsten arc (GTA) behind the TW-GIA is proposed. An additional benefit is that the arc pressure and extra heat input of the GTA obtain weld beads with concave surfaces.
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Cui HC, Jiang ZD, Tang XH, Lu FG (2014) Research on narrow-gap GMAW with swing arc system in horizontal position. Int J Adv Manuf Technol 74:297–305
Shu FY, Lv YH, Liu YX, Xu FJ, Sun Z, He P, Xu BS (2014) Residual stress modeling of narrow gap welded joint of aluminum alloy by cold metal transferring procedure. Constr Build Mater 54:224–235
Xu WH, Lin SB, Fan CL, Yang CL (2014) Evaluation on microstructure and mechanical properties of high-strength low-alloy steel joints with oscillating arc narrow gap GMA welding. Int J Adv Manuf Technol 75:1439–1446
Xu WH, Lin SB, Fan CL, Yang CL (2015) Prediction and optimization of weld bead geometry in oscillating arc narrow gap all-position GMA welding. Int J Adv Manuf Technol 79:183–196
Fan CL, Sun QJ, Zhao B, Yang CL, Zhang LF (2009) Stability of double wires narrow gap gas metal arc welding. J Mech E 45(7):265–269
Li WH, Gao K, Wu J, Wang JY, Ji YH (2015) Groove sidewall penetration modeling for rotating arc narrow gap MAG welding. Int J Adv Manuf Technol 78:573–581
Guo N, Wang MR, Guo W, Yu JB, Feng JC (2014) Study on forming mechanism of appearance defects in rotating arc narrow gap horizontal GMAW. Int J Adv Manuf Technol 75:15–20
Shi CW, Zou Y, Zou ZD, Wu DT (2014) Twin-wire indirect arc welding by modelling and experiment. J Mater Process Tech 214:2292–2299
Fang DS, Song G, Liu LM (2015) A novel method of triple-wire gas indirect arc welding. Mater Manuf Process 31(3):352–358
Liu LM, Fang DS, Song G (2015) Experimental investigation of wire arrangements for narrow-gap triple-wire indirect arc welding. Mater Manuf Process. doi:10.1080/10426914.2015.1090603
Prasanthi TN, Sudha C, Ravikirana SS, Naveen Kumar N, JanakiRam GD (2015) Friction welding of mild steel and titanium: optimization of process parameters and evolution of interface microstructure. Mater Design 88:58–68
Lee HK, Park SH, Kang CY (2015) Effect of plasma current on surface defects of plasma-MIG welding in cryogenic aluminum alloys. J Mater Process Tech 223:203–215
Bhargava P, Paul CP, Mundra G, Premsingh CH, Mishra SK, Nagpure D, Kumar A, Kukreja LM (2014) Study on weld bead surface profile and angular distortion in 6 mm thick butt weld joints of SS304 using fiber laser. Opt Laser Eng 53:152–157
Xiao WK, Zhu L, Zhang FJ, Dai KS, Zai X, Yang X, Chen BJ (2015) Effect of heat input on cryogenic toughness of 316LN austenitic stainless steel NG-MAG welding joints with large thickness. Mater Design 86:160–167
Manti R, Dwivedi DK, Agarwal A (2008) Microstructure and hardness of Al-Mg-Si weldments produced by pulse GTA welding. Int J Adv Manuf Technol 36:263–269
Wu CS, Hu ZH, Zhong LM (2012) Prevention of humping bead associated with high welding speed by double-electrode gas metal arc welding. Int J Adv Manuf Technol 63:573–581
Yang MX, Yang Z, Qi BJ (2015) Effect of fluid in molten pool on the welds with Ti-6Al-4V during pulsed arc welding. Int J Adv Manuf Technol 81:1007–1016
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Fang, D., Liu, L. Analysis of process parameter effects during narrow-gap triple-wire gas indirect arc welding. Int J Adv Manuf Technol 88, 2717–2725 (2017). https://doi.org/10.1007/s00170-016-8802-2
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DOI: https://doi.org/10.1007/s00170-016-8802-2