Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel
Welding processes play a significant role in many fabrication and manufacturing industries. Among various welding processes that have been developed over the years, Gas Metal Arc Welding (GMAW) or Metal Inert Gas Welding (MIG) has received a lot of interest due to its ability to weld a variety of me...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123023000907 |
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| author | O.S. Ogbonna S.A. Akinlabi N. Madushele O.S. Fatoba E.T. Akinlabi |
| author_facet | O.S. Ogbonna S.A. Akinlabi N. Madushele O.S. Fatoba E.T. Akinlabi |
| author_sort | O.S. Ogbonna |
| collection | DOAJ |
| description | Welding processes play a significant role in many fabrication and manufacturing industries. Among various welding processes that have been developed over the years, Gas Metal Arc Welding (GMAW) or Metal Inert Gas Welding (MIG) has received a lot of interest due to its ability to weld a variety of metallic materials, easy adaptation for automation, high deposition rate, high efficiency, and low capital requirement. This study focus on the optimization of the multi-performance characteristics of MIG welded butt joint of AISI 1008 mild steel and AISI 316 austenitic stainless steel by hybrid Grey based Taguchi method. L9 Taguchi orthogonal array was adopted for the optimization of the MIG welding current, voltage and gas flow rate. The weld joint integrity has been assessed in terms of the tensile strength, yield strength, percentage elongation and Vickers microhardness of the fusion zone. Welding current of 180 A, voltage of 14 V, and gas flow rate of 19 l/min were obtained as the optimal parameter setting for the MIG welding process. The tensile strength, yield strength, percentage elongation and hardness of 559.25 MPa, 382.22 MPa, 33.34%, and 250.63 HV respectively were obtained at the optimal setting. Voltage was the most significant process parameter with 63.76% contribution for the multi-performance of the weldments. The confirmatory test was performed to validate the optimization process which proved Grey based Taguchi method to be an easy but yet effective method for multi-performance characteristics optimization of welded joints. |
| first_indexed | 2024-04-10T15:05:15Z |
| format | Article |
| id | doaj.art-556b049fbec44197bd21141c9209d77b |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-04-10T15:05:15Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-556b049fbec44197bd21141c9209d77b2023-02-15T04:28:40ZengElsevierResults in Engineering2590-12302023-03-0117100963Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steelO.S. Ogbonna0S.A. Akinlabi1N. Madushele2O.S. Fatoba3E.T. Akinlabi4Mechanical Engineering Science, University of Johannesburg, South AfricaNorthumbria University, Department of Mechanical and Construction Engineering, Newcastle, UKMechanical Engineering Science, University of Johannesburg, South AfricaMechanical Engineering Science, University of Johannesburg, South Africa; Corresponding author.Northumbria University, Department of Mechanical and Construction Engineering, Newcastle, UKWelding processes play a significant role in many fabrication and manufacturing industries. Among various welding processes that have been developed over the years, Gas Metal Arc Welding (GMAW) or Metal Inert Gas Welding (MIG) has received a lot of interest due to its ability to weld a variety of metallic materials, easy adaptation for automation, high deposition rate, high efficiency, and low capital requirement. This study focus on the optimization of the multi-performance characteristics of MIG welded butt joint of AISI 1008 mild steel and AISI 316 austenitic stainless steel by hybrid Grey based Taguchi method. L9 Taguchi orthogonal array was adopted for the optimization of the MIG welding current, voltage and gas flow rate. The weld joint integrity has been assessed in terms of the tensile strength, yield strength, percentage elongation and Vickers microhardness of the fusion zone. Welding current of 180 A, voltage of 14 V, and gas flow rate of 19 l/min were obtained as the optimal parameter setting for the MIG welding process. The tensile strength, yield strength, percentage elongation and hardness of 559.25 MPa, 382.22 MPa, 33.34%, and 250.63 HV respectively were obtained at the optimal setting. Voltage was the most significant process parameter with 63.76% contribution for the multi-performance of the weldments. The confirmatory test was performed to validate the optimization process which proved Grey based Taguchi method to be an easy but yet effective method for multi-performance characteristics optimization of welded joints.http://www.sciencedirect.com/science/article/pii/S2590123023000907WeldingTaguchi optimizationGrey-relational analysisMulti-performance characteristics |
| spellingShingle | O.S. Ogbonna S.A. Akinlabi N. Madushele O.S. Fatoba E.T. Akinlabi Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel Results in Engineering Welding Taguchi optimization Grey-relational analysis Multi-performance characteristics |
| title | Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel |
| title_full | Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel |
| title_fullStr | Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel |
| title_full_unstemmed | Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel |
| title_short | Grey-based taguchi method for multi-weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel |
| title_sort | grey based taguchi method for multi weld quality optimization of gas metal arc dissimilar joining of mild steel and 316 stainless steel |
| topic | Welding Taguchi optimization Grey-relational analysis Multi-performance characteristics |
| url | http://www.sciencedirect.com/science/article/pii/S2590123023000907 |
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