A systematic overview on activated-Tungsten inert gas welding. (3rd October 2022)

• Record Type: Journal Article
• Authors: Vysakh, K. B.; Mathiazhagan, A.; Krishna Prasad, S.
• Is Part Of: Welding international. Volume 36:Number 10(2022)
• Page Start: 597
• Page End: 615
• Publication Date: 2022-10-03
• Subjects: A-TIG -- flux -- penetration depth -- arc constriction -- Marangoni convection; Welding -- Periodicals; Welding -- Automation -- Periodicals; 671.52
• DOI: 10.1080/09507116.2022.2138795
• Languages: English
• ISSNs: 0950-7116

Abstract

Abstract: An advanced type of Tungsten Inert Gas (TIG) welding called Activated Tungsten Inert Gas welding (or A-TIG welding) was developed to subdue the several limitations in TIG welding. The experimental set up for A-TIG welding is the same as that of TIG welding except that an activating flux powder in a paste form is coated on the weld line preceding TIG welding. The penetration in A-TIG technique is reported to be twice or thrice that of the TIG welding process. Therefore, research is continuously progressing over the years, validating the possibility of applying A-TIG welding to various types of materials using different fluxes. Owing to this, in this paper, a detailed review is made covering multiple aspects of the A-TIG welding process starting from its evolution to the latest advancements achieved. This review categorizes different types of studies performed in A-TIG welding so as to get an explicit outlook of the implementation of A-TIG welding in different aspects. The shortcomings of various researches conducted are suggested, and the future scope of investigations on A-TIG welding is also raised in detail.