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J Weld Join. 2014;32(5):456-461. Published online October 30, 2014.
DOI: https://doi.org/10.5781/JWJ.2014.32.5.26
- Welding Characteristics of A-TIG Using Various Compositions of Active Fluxes
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Bong-Hun Kim*, Yong-Soo Gong*
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- Corresponding author: Bong-Hun Kim ,Email: bhkim@daegu.ac.kr
- Abstract
- Conventional TIG(C-TIG) welding process guarantees higher quality weldment when compared with other processes. However, C-TIG with inherent low penetration shows disadvantages in productivity, especially for thick-walled structure. To overcome these handicaps, active-flux TIG(A-TIG) welding has been introduced and studied widely in a motivation to improve both quality and productivity. Present study made a focus on optimum combination of oxide components to enhance arc contraction and penetration. Results indicated that arc contraction inducing enhancement of penetration could be possible when composition of active fluxes was well matched with base metal.
Keywords :A-TIG(Active Flux TIG), C-TIG(Conventional TIG), Arc contraction, Non-metallic oxide, Active flux
