Multi-pass tandem gas metal arc welding (TGMAW) for Al 5083 alloy plates with 30mm thickness
is carried out to study its high efficiency and high quality. The welding process is evaluated by high-speed photographs
and electrical signals. The deposition rate and welding time are calculated to characterize the welding
efficiency. The bead formation, porosity, microstructure and mechanical properties are tested and analyzed. The
results indicate that though arc deflection occurs due to the electromagnetic interference between two arcs during
TGMAWprocess, it does not affect the welding process stability significantly. The deposition rate and welding time
of TGMAW process are about 15 g/min larger and about 16.7% less than those of gas metal arc welding (GMAW)
process respectively, accompanied by the reduction of heat input. The TGMAW welded joint has less porosity and
more refined microstructure to contribute to the improvement of mechanical properties (micro-hardness, tensile
strength and ductility). It can be concluded that TGMAW process yields excellent performance of welded joint
with improved welding efficiency, which makes it extremely practical during welding of thick plates.
JIANG Zhao (姜朝), HUA Xueming* (华学明), HUANG Lijin (黄立进),WU Dongsheng (吴东升), LI Fang (李芳), CAI Yan (蔡艳)
. High Efficiency and Quality of Multi-Pass Tandem Gas Metal Arc Welding for Thick Al 5083 Alloy Plates[J]. Journal of Shanghai Jiaotong University(Science), 2019
, 24(2)
: 148
-157
.
DOI: 10.1007/s12204-018-1977-y
[1] MAKOWIECKAJA O K. Present situation and developmentaltrends in the global market of major structuralmaterials and welding technique [J]. Biuletyn InstytutuSpawalnictwa, 2015, 59(4): 32-40.
[2] MIYAZAKI H, MIYAUCHI H, SUGIYAMA Y, et al.Puckering in aluminium alloy welds: Prevention usingdouble wire MIG welding [J]. Welding International,1993, 7(6): 431-437.
[3] DING X P, LI H, WEI H L, et al. Numerical analysisof arc plasma behavior in double-wire GMAW [J].Vacuum, 2016, 124: 46-54.
[4] YAO P, XUE J X, ZHOU K, et al. Symmetrical transitionwaveform control on double-wire MIG welding[J]. Journal of Materials Processing Technology, 2016,229: 111-120.
[5] UEYAMA T, OHNAWA T, TANAKA M, et al. Occurrenceof arc interaction in tandem pulsed gas metalarc welding [J]. Science and Technology of Welding &Joining, 2007, 12(6): 523-529.
[6] WU D S, HUA X M, YE D J, et al. Understanding ofthe weld pool convection in twin-wire GMAWprocess[J]. International Journal of Advanced ManufacturingTechnology, 2017, 88(1/2/3/4): 219-227.
[7] WU D S, HUA X M, YE D J, et al. Understanding ofhumping formation and suppression mechanisms usingthe numerical simulation [J]. International Journal ofHeat and Mass Transfer, 2017, 104: 634-643.
[8] UEYAMA T, OHNAWA T, TANAKA M, et al. Effectsof torch configuration and welding current onweld bead formation in high speed tandem pulsed gasmetal arc welding of steel sheets [J]. Science and Technologyof Welding and Joining, 2005, 10(6): 750-759.
[9] YAO P, XUE J X, ZHOU K. Study on the wire feedspeed prediction of double-wire-pulsed MIG weldingbased on support vector machine regression [J]. InternationalJournal of Advanced Manufacturing Technology,2015, 79(9/10/11/12): 2107-2116.
[10] MATSUMOTO T, SASABE S. Tandem MIG weldingof aluminium alloys [J]. Welding International, 2005,19(12): 945-949.
[11] FANG C F, MENG X H, HU Q X, et al. TANDEMand GMAWtwin wire welding of Q690 steel used in hydraulicsupport [J]. Journal of Iron and Steel ResearchInternational, 2012, 19(5): 79-85.
[12] LEE K B, KIM C, KIM D S. High deposition ratepulse gas metal arc welding for Al 5083 thick plate[J].Journal of Engineering Manufacture, 2013, 227(6):848-854.
[13] UEYAMA T, OHNAWA T, YAMAZAKI K, et al.High-speed welding of steel sheets by the tandempulsed gas metal arc welding system [J]. Transactionsof JWRI, 2005, 34(1): 11-18.
[14] ZHU C X, TANG X H, HE Y, et al. Characteristics andformation mechanism of sidewall pores in NG-GMAWof 5083 Al-alloy [J]. Journal of Materials ProcessingTechnology, 2016, 238: 274-283.
[15] LAKSHMINARAYANAN A K, BALASUBRAMANIANV, ELANGOVAN K. Effect of welding processeson tensile properties of AA6061 aluminium alloy joints[J]. International Journal of Advanced ManufacturingTechnology, 2009, 40(3/4): 286-296.
[16] DUTRA J C, E SILVA R H G, SAVI B M, et al. Metallurgicalcharacterization of the 5083H116 aluminumalloy welded with the cold metal transfer process andtwo different wire-electrodes (5183 and 5087) [J]. Weldingin the World, 2015, 59(6): 797-807.
