Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology
Gas metal arc welding (GMAW) is a joining process that is controlled by several inputs or welding parameters. However, speed, current and voltage are the parameters that are most frequently used in setting this process. Cord area, yield stress, tensile strength, residual stresses, hardness and rough...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2016-08-01
|
Series: | Metals |
Subjects: | |
Online Access: | http://www.mdpi.com/2075-4701/6/9/205 |
id |
doaj-55aa7eac051c4ff59e07e3f6cad57cce |
---|---|
record_format |
Article |
spelling |
doaj-55aa7eac051c4ff59e07e3f6cad57cce2020-11-24T23:38:34ZengMDPI AGMetals2075-47012016-08-016920510.3390/met6090205met6090205Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface MethodologyRuben Lostado Lorza0Ruben Escribano García1María Ángeles Martínez Calvo2Rodolfo Múgica Vidal3Department of Mechanical Engineering, University of La Rioja, Logroño 26004, La Rioja, SpainBuilt Environment and Engineering, Leeds Beckett University, Leeds LS1 3HB, UKDepartment of Mechanical Engineering, University of La Rioja, Logroño 26004, La Rioja, SpainDepartment of Mechanical Engineering, University of La Rioja, Logroño 26004, La Rioja, SpainGas metal arc welding (GMAW) is a joining process that is controlled by several inputs or welding parameters. However, speed, current and voltage are the parameters that are most frequently used in setting this process. Cord area, yield stress, tensile strength, residual stresses, hardness and roughness are considered to be outputs or welded joints parameters. They are widely used when the design requirements are based on the cost, manufacturing speed, strength and surface finish. This paper seeks to determine the relationship between the welding parameters and the welded joint parameters of speed, current and voltage in butt joints (X-groove) of EN 235JR by the response surface method (RSM). The optimal joints when considering the design requirements of cost, manufacturing speed, strength and surface finish were achieved by using the multi-response surface (MRS). The optimal welding parameters reached when considering the design requirements of cost were 140.593 amps, 8.192 mm/s and 29.999 volts, respectively, whereas the design requirements of manufacturing speed were 149.88 amps, 9.261 mm/s and 29.999 volts. Finally, the welding parameters for the design requirements of joint strength and surface finish were 149.086 amps, 7.139 mm/s and 28.541 volts and 150.372 amps, 8.561 mm/s and 29.877 volts, respectively.http://www.mdpi.com/2075-4701/6/9/205modelling and optimizing welded jointsmultiple response surface methodologyresidual stressestensile strengthhardnessroughness |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ruben Lostado Lorza Ruben Escribano García María Ángeles Martínez Calvo Rodolfo Múgica Vidal |
spellingShingle |
Ruben Lostado Lorza Ruben Escribano García María Ángeles Martínez Calvo Rodolfo Múgica Vidal Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology Metals modelling and optimizing welded joints multiple response surface methodology residual stresses tensile strength hardness roughness |
author_facet |
Ruben Lostado Lorza Ruben Escribano García María Ángeles Martínez Calvo Rodolfo Múgica Vidal |
author_sort |
Ruben Lostado Lorza |
title |
Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology |
title_short |
Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology |
title_full |
Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology |
title_fullStr |
Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology |
title_full_unstemmed |
Improvement in the Design of Welded Joints of EN 235JR Low Carbon Steel by Multiple Response Surface Methodology |
title_sort |
improvement in the design of welded joints of en 235jr low carbon steel by multiple response surface methodology |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2016-08-01 |
description |
Gas metal arc welding (GMAW) is a joining process that is controlled by several inputs or welding parameters. However, speed, current and voltage are the parameters that are most frequently used in setting this process. Cord area, yield stress, tensile strength, residual stresses, hardness and roughness are considered to be outputs or welded joints parameters. They are widely used when the design requirements are based on the cost, manufacturing speed, strength and surface finish. This paper seeks to determine the relationship between the welding parameters and the welded joint parameters of speed, current and voltage in butt joints (X-groove) of EN 235JR by the response surface method (RSM). The optimal joints when considering the design requirements of cost, manufacturing speed, strength and surface finish were achieved by using the multi-response surface (MRS). The optimal welding parameters reached when considering the design requirements of cost were 140.593 amps, 8.192 mm/s and 29.999 volts, respectively, whereas the design requirements of manufacturing speed were 149.88 amps, 9.261 mm/s and 29.999 volts. Finally, the welding parameters for the design requirements of joint strength and surface finish were 149.086 amps, 7.139 mm/s and 28.541 volts and 150.372 amps, 8.561 mm/s and 29.877 volts, respectively. |
topic |
modelling and optimizing welded joints multiple response surface methodology residual stresses tensile strength hardness roughness |
url |
http://www.mdpi.com/2075-4701/6/9/205 |
work_keys_str_mv |
AT rubenlostadolorza improvementinthedesignofweldedjointsofen235jrlowcarbonsteelbymultipleresponsesurfacemethodology AT rubenescribanogarcia improvementinthedesignofweldedjointsofen235jrlowcarbonsteelbymultipleresponsesurfacemethodology AT mariaangelesmartinezcalvo improvementinthedesignofweldedjointsofen235jrlowcarbonsteelbymultipleresponsesurfacemethodology AT rodolfomugicavidal improvementinthedesignofweldedjointsofen235jrlowcarbonsteelbymultipleresponsesurfacemethodology |
_version_ |
1725516472843763712 |