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2020 Abstract: Cold metal transfer (CMT) welding is a brand-new arc welding technique which shows adequate results for welding of thin sheets and dissimilar materials. Corrosion behavior of dissimilar..., ROZANSKI M. Modern technologies of welding aluminium and its alloys [J]. Welding International, 2014, 28(2): 91-99. [10] KAH P, SUORANTA R, MARTIKAINEN J. Advanced gas metal arc welding processes [J......
of melting rate and metal transfer in gas-shielded metal-arc welding [J]. Welding Journal, 1958, 37(9): 418-425. (Edited by FANG Jing-hua) Corresponding author: BAI Yan; Tel: +86-21-26649552; E-mail... and the heat from droplets to base metal[5-9]. Compared with the MIG welding on the aluminum alloys, the preheating effect of welding wire is enhanced by introducing plasma arc in the plasma-MIG......
pressure near the steel surface, which always results in the instable metal transfer and welding process. Key words: cold metal transfer; arc plasma; heat and mass transfer; numerical simulation 冷金属过渡技术(CMT... and gas emissions using innovative gas metal arc welding variants[J]. The International Journal of Advanced Manufacturing Technology, 2010, 50 (5): 557-567. [6] Haidar J. Predictions of metal droplet......
Optimization of pulsed current gas tungsten arc welding process parameters to attain maximum tensile strength in AZ31B magnesium alloy G. PADMANABAN, V. BALASUBRAMANIAN Center for Materials... on tensile strength, followed by peak current, pulse on time and base current. Key words: AZ31B magnesium alloy; pulsed current gas tungsten arc welding; response surface methodology; optimization......
of strengthening precipitates in the weld metal of FSW joints. Key words: AA2219 aluminium alloy; gas tungsten arc welding; electron beam welding; friction stir welding; tensile properties; fatigue... specific strength. The preferred welding processes for AA2219 aluminium alloy are frequently gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) due to their comparatively easier applicability......
, China Received 25 May 2011; accepted 22 August 2011 Abstract: Wrought magnesium alloy sheets were butt welded with gas metal arc welding process. Pores in the weld were investigated under different... higher than that in the base metal due to the second phase strengthening of β-Mg17(Al, Zn)12 formed in the weld. Key words: Mg alloy; gas metal arc welding; porosity; microstructure; second phase......
Experimental Investigation on the Performance of Armour Grade Q&T Steel Joints Fabricated by Flux Cored Arc Welding with Low Hydrogen Ferritic ConsumablesV.Balasubramanian2,G.Gopalakrishnan22... resistance against cold cracking.Hence,in this investigation an attempt has been made to study the performance of armour grade Q&T steel joints fabricated by flux cored arc welding with LHF steel......
define that the joint or weld directly formed from the base metal is initial joint or initial weld, while the joint or weld formed after repair welding of the initial joint or initial weld is repair...% of that of the base metal. Obviously, both repair welding processes are able to improve the mechanical properties of the joints with groove defect, but the offset repair welding process is superior......
zone. The scanning electron microscopic images revealed elongated grains and dimples, justifying ductile mode of fracture. Key words: plasticity; metal flow; onion ring; fracture; friction stir welding... joints welded by electron beam welding (EBM) and gas tungsten arc welding (GTAW). This is due to uniform distribution of fine precipitates with dynamically recrystallized grains in the weld region [5......
=2.0. The values of ellipsoidal parameters a, b, c1 and c2 are 6.0, 4.5, 7.0 and 9.0 mm, respectively, which represent heat source size relating to the characteristics of welding arc. 5 Simulation... to εp augments with increasing temperature. Fig.4 shows the transient temperature field contour of welding process when welding arc moves to the centre of sheets. It can be observed......
