Parametric Optimization and Determination of a Suitable Welding Process for Stainless Steel-Mild Steel Dissimilar Metals Weld

Arid Zone Journal of Engineering, Technology and Environment

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Title Parametric Optimization and Determination of a Suitable Welding Process for Stainless Steel-Mild Steel Dissimilar Metals Weld
 
Creator Sada, S. O.
Enyi, L. C.
 
Subject Welding
Dissimilar Metals
Response Surface Methodology
Tensile Strength
 
Description Difficulties associated with dissimilar metals welding differ remarkably and can be minimized with the selection of a suitable joining process, modification of the joining technique, and the adoption of optimal process parameters. This study investigates the suitability of three fusion welding processes (gas tungsten arc welding (GTAW), gas metal arc weld (GMAW), and shielded metal arc welding (SMAW)) in the welding of stainless steel to mild steel plates based on their mechanical properties and observed weld defects. Gas tungsten arc welding (GTAW) process which turned out to be the most suitable of the three, recording the least imperfections, an efficiency in mechanical properties of 8% higher compared to the other processes, furthermore analyzed using the response surface methodology (RSM) to obtain a models of the input and output relationship, as well as the optimal process parameters was conducted. An optimal parameters of 461.88N/mm2 for the tensile strength and 31.65% for the Elongation was observed at the combined input parameters of 200 amp, 15 volt, 20 l/min, and 2.4mm for the weld current, arc voltage, gas flow rate and filler rod respectively. Therefore, the application of optimal process parameters along with a compatible weld process is recommended in the welding of dissimilar metals to guarantee excellent weld qualities.
 
Publisher FACULTY OF ENGINEERING, UNIVERSITY OF MAIDUGURI, NIGERIA
 
Date 2020-12-07
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://azojete.com.ng/index.php/azojete/article/view/382
 
Source ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT; Vol. 16 No. 4 (2020); 803-812
2545-5818
1596-2490
 
Language eng
 
Relation https://azojete.com.ng/index.php/azojete/article/view/382/267
 
Rights Copyright (c) 2020 Arid Zone Journal of Engineering, Technology and Environment published by University of Maiduguri, Nigeria.
https://creativecommons.org/licenses/by-nc-nd/4.0
 

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