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Numerical Simulation of the Dynamic Behaviors of a Gas Tungsten Welding Arc for Joining Magnesium Alloy AZ61AZhenmin WANG1,Fang YAN2,Pengcheng ZHAO21. School of Mechanical & Automotive Engineering...-Dynamic(MHD)theory,a united three-dimensional(3D)transient numerical model is developed to investigate the dynamic behaviors of arc plasma for a magnesium alloy AZ61A gas tungsten arc welding(GTAW......
flux coating. Moreover, the generation of necking only occurred in the welded joints with TiO2+GNPs flux. Key words: graphene nanoplate; nanoparticles strengthening activating gas tungsten inert arc...: 303-309. [5] LIU Li-ming, WANG Ji-feng, SONG Gang. Hybrid laser–TIG welding, laser beam welding and gas tungsten arc welding of AZ31B magnesium alloy [J]. Materials Science and Engineering A, 2004, 38......
; tungsten inert gas arc welding; microstructural evolution; mechanical properties; relationship model 1 Introduction 2219 aluminum alloy is a kind of alloys that can be strengthened by precipitation... current tungsten inert gas (TIG) arc welding and variable polarity TIG (VPTIG) arc welding has been applied in the manufacturing of fuel tanks for large launch vehicles. Unfortunately......
material; tungsten inert gas arc welding; mechanical property; microstructure 铜和铝均有良好的导电性与导热性,且都具有良好的塑性和一定的耐腐蚀性能,因而在电器工业和散热器械等方面这两种金属有广泛的应用.我国是有色金属大国,但铜,铝等有色金属资源短缺[1],由于铜的成本和密度都较铝合金要高,因而,在很多应用场合都可用铝代替铜以降低生..., Nanchang 330063, China) Abstract: Lincoln TIG-355 AC/DC arc welding machine and 8515 Zn-Al flux cored wire were used to butt weld T2 copper with LY16 aluminum in AC mode. The microstructure......
Microstructure and mechanical characteristics of AA6061-T6 joints produced by friction stir welding, friction stir vibration welding and tungsten inert gas welding: A comparative studyBehrouz... joints produced using friction stir welding(FSW), friction stir vibration welding(FSVW), and tungsten inert gas welding(TIG). FSVW is a modified version of FSW wherein the joining specimens......
Development of gas tungsten arc welding using current pulsing technique to preclude chromium carbide precipitation in aerospace-grade alloy 80AP.Subramani,M.ManikandanSchool of Mechanical Engineering, Vellore Institute of Technology摘 要:Weldments were produced using gas tungsten arc welding(GTAW) and pulsed current gas tungsten arc welding(PCGTAW......
tungsten inert gas welding. A solid solution and age-hardenable filler metals were further studied. On the pre-weld heat-treated samples, upon solving the secondary γ′ particles in the matrix, primary γ...Liquation cracking in the heat-affected zone of IN939 superalloy tungsten inert gas weldmentsHassan Kazempour-Liasi,Mohammad Tajally,Hassan Abdollah-PourFaculty of Materials and Metallurgical......
modifier. Key words: AA4043 welding wire; titanium; strontium; modification; gas tungsten arc welding; microstructure; mechanical properties 1 Introduction 6000 series aluminum alloys are used extensively for rocket shell, cryogenic tanks, engine castings and other medium strength structures [1]. Therefore, welding of these alloys by different welding methods [2-6] including tungsten inert gas (TIG......
Partial melting and re-solidification in partially melted zone during gas tungsten arc welding of AZ91 cast alloy T. P. ZHU1, Z. W. CHEN2, W. GAO1 1. Department of Chemical... in constitutional liquation in the original interdendritic regions and in the formation of a partially melted zone (PMZ). In this study, gas tungsten arc welding (GTAW) and partial melting (simulated using......
