Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints

Resistance spotwelding is the most significant joining technique utilized in various industries, like automotive, boilers, vessels, etc., that are commonly subjected to variable tensile-shear forces due to the unsuitable use of the input spot welding variables, which mainly cause the welded joints f...

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Main Author: Najmuldeen Yousif Mahmood
Format: Article
Language:English
Published: Polish Academy of Sciences 2020-05-01
Series:Archive of Mechanical Engineering
Subjects:
Online Access:https://journals.pan.pl/Content/115022/PDF/AME_2020_131690.pdf
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author Najmuldeen Yousif Mahmood
author_facet Najmuldeen Yousif Mahmood
author_sort Najmuldeen Yousif Mahmood
collection DOAJ
description Resistance spotwelding is the most significant joining technique utilized in various industries, like automotive, boilers, vessels, etc., that are commonly subjected to variable tensile-shear forces due to the unsuitable use of the input spot welding variables, which mainly cause the welded joints failure during the service life of the welded assembly. So, in order to avoid such failures, the welding quality of some materials like aluminum must be improved taking into consideration the performance and weight saving of the welded structure. Thus, the need for optimizing the used welding parameters becomes essential for predicting a goodwelded joint.Accordingly, this study aims at investigating the influence of the spot welding variables, including the squeeze time, welding time, and current on the tensile-shear force of the similar and dissimilar lap joints for aluminum and steel sheets. It was concluded that the use of Taguchi design can improve the welded joints strength through designing the experiments according to the used levels of the input parameters in order to obtain their optimal values that give the optimum tensile-shear force as the response. As a consequence of the present work, the optimal spot welding parameters were successfully obtained.
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spelling doaj.art-f35226deda1b418caebe8d9eec9b7f6d2022-12-22T03:41:49ZengPolish Academy of SciencesArchive of Mechanical Engineering2300-18952020-05-01vol. 67No 2197210https://doi.org/10.24425/ame.2020.131690Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding jointsNajmuldeen Yousif Mahmood0Mechanical Engineering Department, University of Technology-Iraq, Baghdad, Iraq.Resistance spotwelding is the most significant joining technique utilized in various industries, like automotive, boilers, vessels, etc., that are commonly subjected to variable tensile-shear forces due to the unsuitable use of the input spot welding variables, which mainly cause the welded joints failure during the service life of the welded assembly. So, in order to avoid such failures, the welding quality of some materials like aluminum must be improved taking into consideration the performance and weight saving of the welded structure. Thus, the need for optimizing the used welding parameters becomes essential for predicting a goodwelded joint.Accordingly, this study aims at investigating the influence of the spot welding variables, including the squeeze time, welding time, and current on the tensile-shear force of the similar and dissimilar lap joints for aluminum and steel sheets. It was concluded that the use of Taguchi design can improve the welded joints strength through designing the experiments according to the used levels of the input parameters in order to obtain their optimal values that give the optimum tensile-shear force as the response. As a consequence of the present work, the optimal spot welding parameters were successfully obtained.https://journals.pan.pl/Content/115022/PDF/AME_2020_131690.pdfspot welding parameterstensile-shear forcetaguchi methodoptimizationdesign of experiment
spellingShingle Najmuldeen Yousif Mahmood
Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints
Archive of Mechanical Engineering
spot welding parameters
tensile-shear force
taguchi method
optimization
design of experiment
title Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints
title_full Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints
title_fullStr Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints
title_full_unstemmed Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints
title_short Prediction of the optimum tensile – shear strength through the experimental results of similar and dissimilar spot welding joints
title_sort prediction of the optimum tensile shear strength through the experimental results of similar and dissimilar spot welding joints
topic spot welding parameters
tensile-shear force
taguchi method
optimization
design of experiment
url https://journals.pan.pl/Content/115022/PDF/AME_2020_131690.pdf
work_keys_str_mv AT najmuldeenyousifmahmood predictionoftheoptimumtensileshearstrengththroughtheexperimentalresultsofsimilaranddissimilarspotweldingjoints