Study on A-TIG Welding Technology for 12 mm Thick 304 Stainless Steel Plate

Abstract:

A-TIG welding is a new variant of high-efficiency TIG weld technology, the weld penetration can be improved by using surface activating fluxes. In the present work, 12 mm thick stainless steel plates were welded by A-TIG method utilizing self-developed oxide-based composite activating flux. Results showed that for 12 mm thick stainless steel plates, weld joint of full penetration and one-side welding with back formation and good weld appearance could be achieved by A-TIG welding. Furthermore, compared with traditional TIG welding, the microstructure of A-TIG weld was finer, directivity of dendritic crystals near weld bond line was weaker, and mechanical properties of weld joints was also superior.

• Periodical: Materials Science Forum (Volume 817)
• Pages: 337-341
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.817.337
• Online since: April 2015
• Authors: Yao Yong Yi*, Guan Hui Liu, Yu Peng Zhang, Zi Yi Luo, Lei Xu
• Keywords: A-TIG, High-Efficiency Welding, Mechanical Properties, Microstructure, Oxide-Based

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