Investigation on effects of flux assisted GTAW welding process on mechanical, metallurgical characteristics of dissimilar metals SS 304 and SS 316 L. (2020)

• Record Type: Journal Article
• Authors: Vinothkumar, H.; Balakrishnan, M.; Gulanthaivel, K.; Logeshwaran, R.; Mohanraj, R.
• Is Part Of: Materials today. Volume 33:Part 7(2020)
• Page Start: 3191
• Page End: 3196
• Publication Date: 2020
• Subjects: TIG -- A-TIG -- Dissimilar metals -- SEM analysis -- Mechanical Properties; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.04.143
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Gas Tungsten Arc Welding is one of the widely used welding techniques mainly in stainless steel applications. The major objective of this project is to weld two dissimilar stainless steel plates SS304 and SS316L by TIG welding and Activated TIG welding along with analyzing the mechanical and microstructure properties of the welded joints to find their applications in food processing machine. Two dissimilar metals of 6 mm thick AISI 304 and SS 316 L stainless steel plate are welded by Activated Tungsten Inert Gas welding and Tungsten Inert Gas welding "V" butt joints. The activated flux used in this welding such as aluminium oxide, copper oxide which increases the weld penetration of the joint and also to done the welding in single pass. The life span of many food processing machines has been reduced over the years due to low quality welded joints in the machine or has not fulfilled the estimated life span of the machine due to their poor quality of joints and the materials of the machine could not adopt the working condition of the machine. The experimental investigation shows that the A- TIG welding has high weld strength than TIG welding.