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2014•Advanced materials researchOpen access

Experimental Research of Activating Fluxes in A-TIG Welding of 5052 Aluminum Alloy

Ze Jie Zhou, Zhi Chao Huang

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Abstract

AC A-TIG welding on 5052 aluminum alloy was investigated. The single component of oxide TiO2, SiO2, Cr2O3, V2O5 and halide CaF2 was served as activating fluxes to study the effect on weld penetration and weld forming. The experimental results show that weld penetration can be increased and welding productivity can be improved in A-TIG welding. Activating fluxes, especially TiO2 and SiO2, have more significant effect on weld penetration than conventional TIG welding, moreover the better weld shape formed after coating activating flux is obtained, weld width has slight decrease that makes HAZ of A-TIG welding smaller.

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What this paper is about

AC A-TIG welding on 5052 aluminum alloy was investigated. The single component of oxide TiO2, SiO2, Cr2O3, V2O5 and halide CaF2 was served as activating fluxes to study the effect on weld penetration and weld forming. The experimental results show that weld penetration can be increased and welding productivity can be improved in A-TIG welding. Activating fluxes, especially TiO2 and SiO2, have more significant effect on weld penetration than conventional TIG welding, moreover the better weld shape formed after coating activating flux is obtained, weld width has slight decrease that makes HAZ of A-TIG welding smaller.

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Available abstract

AC A-TIG welding on 5052 aluminum alloy was investigated. The single component of oxide TiO2, SiO2, Cr2O3, V2O5 and halide CaF2 was served as activating fluxes to study the effect on weld penetration and weld forming. The experimental results show that weld penetration can be increased and welding productivity can be improved in A-TIG welding. Activating fluxes, especially TiO2 and SiO2, have more significant effect on weld penetration than conventional TIG welding, moreover the better weld shape formed after coating activating flux is obtained, weld width has slight decrease that makes HAZ of A-TIG welding smaller.

Key concepts: Welding, Gas tungsten arc welding, Materials science, Metallurgy, Penetration (warfare), Alloy, Heat-affected zone, Filler metal

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