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Influence of parameters on mechanical and micro-structural properties of tungsten inert gas (TIG) welded joint of 1 mm thin Inconel 625 plates

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Title Influence of parameters on mechanical and micro-structural properties of tungsten inert gas (TIG) welded joint of 1 mm thin Inconel 625 plates
 
Creator Tripathi, Saurabh
Tudu, Nehem
Baruah, Mayuri
Ballav, Raj
Prasad
 
Subject Tungsten inert gas (TIG) welding
Inconel 625 (IN625)
Arc energy
Welding current
Voltage
 
Description 87-93
Inconel 625 (IN625), since its invention, has been a material of choice for industries where components in service
conditions are exposed to extremely high temperatures, corrosion, and oxidation environments. As per the American
welding society for butt-joining such alloys in sheets, non-traditional techniques are the best means for producing permanent
joints. These techniques require high-cost setup and high maintenance costs which are only economical for high-volume
assembly line fabrication in mass-production facilities. Therefore, Tungsten Inert Gas (TIG) welding is highly suitable for
producing defect-free autogenous weldments in high-strength alloy sheets with a thickness below 3mm. The current work
focuses on the experimental investigation of the TIG welding of Inconel 1mm sheets. In this work, mechanical properties
and microstructure are studied for controlled heat input of TIG welding. Current is varied from 40A to 65A and voltage
from 10V to 12V. Only three combinations of parameters show sound weld visually and are analyzed by performing various
testing. The main objective of the study is to find the feasible process parameters for the micro joining of IN625 sheets.
From this discussion, it appears that arc energy, welding current, and voltage significantly affect the quality of the weld.
 
Date 2023-03-06T11:23:47Z
2023-03-06T11:23:47Z
2023-03
 
Type Article
 
Identifier 0971-4588 (Print); 0975-1017 (Online)
http://nopr.niscpr.res.in/handle/123456789/61501
https://doi.org/10.56042/ijems.v1i1.60109
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.30(1) [February 2023]