Parametric Studies on TIG Welding of 316L Stainless Steel by RSM and TLBO

Parametric Studies on TIG Welding of 316L Stainless Steel by RSM and TLBO

Present study is planned to analyze the effects of welding process parameters on quality characteristics of TIG welded 316L austenitic stainless steels (ASS). The input parameters considered in the study are: welding current, speed and gas flow rate. Butt-joints of ASS sheets have been made as per B...

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Veröffentlicht in:Materials science forum 2019-08, Vol.969, p.744-749
Hauptverfasser: Bandyopadhyay, Asish, Rudrapati, Ramesh, Moi, Subhas Chandra, Pal, Pradip Kumar
Format: Artikel
Sprache:eng
Schlagworte:
Austenitic stainless steels
Butt joints
Butt welding
Flow velocity
Gas flow
Gas tungsten arc welding
Optimization
Parametric statistics
Process parameters
Response surface methodology
Tensile tests
Ultimate tensile strength
Welding current
Welding parameters
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creator Bandyopadhyay, Asish
Rudrapati, Ramesh
Moi, Subhas Chandra
Pal, Pradip Kumar
description Present study is planned to analyze the effects of welding process parameters on quality characteristics of TIG welded 316L austenitic stainless steels (ASS). The input parameters considered in the study are: welding current, speed and gas flow rate. Butt-joints of ASS sheets have been made as per Box-Behnken design of response surface methodology (RSM). After welding operation, tensile tests have been conducted on welded samples and observations of ultimate tensile strength (UTS) has been noted. Mathematical modeling has been made to relate the input parameters and output response by RSM. Teaching leaning-based optimization (TLBO) approach has been used to optimize the UTS. The influences of input welding parameters on UTS has been studied and analyzed through contour plots. Confirmatory tests have been conducted to validate the predicted parametric condition obtained by integrated RSM and TLBO. From the study, it is found that RSM and TLBO is efficient to maximize UTS in TIG welding operation.
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subjects Austenitic stainless steels
Butt joints
Butt welding
Flow velocity
Gas flow
Gas tungsten arc welding
Optimization
Parametric statistics
Process parameters
Response surface methodology
Tensile tests
Ultimate tensile strength
Welding current
Welding parameters
title Parametric Studies on TIG Welding of 316L Stainless Steel by RSM and TLBO
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