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Experimental investigation of tensile properties and microstructure of TIG welded dissimilar joints of Al6061/Al5083 Aluminium alloy

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Title Experimental investigation of tensile properties and microstructure of TIG welded dissimilar joints of Al6061/Al5083 Aluminium alloy
 
Creator Verma, Vijay
Singh, Aman
Pandey, Arun Kumar
Sharma, Chaitanya
Sonia, Pankaj
Saxena, Kuldeep Kumar
 
Subject Dissimilar Aluminium Alloy
TIG welding
Tensile properties
Microstructure
Optimization
 
Description 262-270
The welding of aluminium alloys especially in dissimilar combination is challenging owing to numerous problems. The
present study focuses to optimize processes parameters for dissimilar welding of 6 mm thick dissimilar Al-6061 and
Al-5083, using Tungsten Inert Gas welding as well as to investigate the influence of the process parameters on tensile
properties and microstructure of developed welds. A single V-butt joint configuration (bevel angle 60 ĚŠ and root gap 2 mm)
of plates was used for welding. Three levels of input parameters viz. voltage, current and welding speed were selected for
performing experiments as per L9 orthogonal array. The hardness and tensile strength were taken as output parameters or
performance characteristic in the study. The optimum parameter settings for highest heat affected zone hardness and
ultimate tensile strength of dissimilar welds have been suggested by using S/N ratio. The result predicted by optimization
has an error of 2-3%. Finally, the effects of voltage, current and welding speed on m icro structure, hardness and tensile
strength of welds have been investigated. Welding speed and current were the most influencing process parameter for
controlling the hardness of HAZ and tensile strength of the welds.
 
Date 2022-05-19T05:56:29Z
2022-05-19T05:56:29Z
2022-04
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscair.res.in/handle/123456789/59739
 
Language en
 
Publisher CSIR-NIScPR, India
 
Source IJEMS Vol.29(2) [April 2022]