Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60

Submerged Arc Welding (SAW) process is generally used for industries, such as petroleum storage tanks, pressure vessels, and structural components.Good mechanical properties of welded joint lead to crack-free strong joints. In this research, included angle, current, welding travel speed and arc volt...

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Main Authors: Sadeq Bakhy, Samir Amin, Fouad Abdullah
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2018-10-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_175292_1095e85580a84a1fa6eb88f194309be6.pdf
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author Sadeq Bakhy
Samir Amin
Fouad Abdullah
author_facet Sadeq Bakhy
Samir Amin
Fouad Abdullah
author_sort Sadeq Bakhy
collection DOAJ
description Submerged Arc Welding (SAW) process is generally used for industries, such as petroleum storage tanks, pressure vessels, and structural components.Good mechanical properties of welded joint lead to crack-free strong joints. In this research, included angle, current, welding travel speed and arc voltage were utilized as welding parameters to weld ASTM A516 Grade 60 (low carbon steel). The experiments were carried out according to a design matrix that established by DOE (Version10) with RSM technique. Microhardness of welded samples was measured by a Digital Microhardness Tester, and then RSM technique was used to model and optimize the microhardness based on the welding parameters. The results showed that the including angle and welding current have a great effect on the microhardness. The optimum solution for minimum microhardness was found at 450 Amp welding current, 38 cpm welding speed, 34-volt arc voltage and included angle of 60⁰. The optimum value of microhardness was (186.7 HV). Eventually, the experimental and predicted results of microhardness were found in good agreement with 4.6%. maximum error.
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spelling doaj.art-48e71e6ac0094fe296fe2ba792d6d0832024-02-04T17:16:52ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582018-10-013610A1039104710.30684/etj.36.10A.4175292Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60Sadeq Bakhy0Samir Amin1Fouad Abdullah2Mechanical Engineering Department, University of Technology. Baghdad.Department of Mechanical Engineering, University of Technology, Baghdad, IraqMechanical Engineering Department, University of Technology, Baghdad.Submerged Arc Welding (SAW) process is generally used for industries, such as petroleum storage tanks, pressure vessels, and structural components.Good mechanical properties of welded joint lead to crack-free strong joints. In this research, included angle, current, welding travel speed and arc voltage were utilized as welding parameters to weld ASTM A516 Grade 60 (low carbon steel). The experiments were carried out according to a design matrix that established by DOE (Version10) with RSM technique. Microhardness of welded samples was measured by a Digital Microhardness Tester, and then RSM technique was used to model and optimize the microhardness based on the welding parameters. The results showed that the including angle and welding current have a great effect on the microhardness. The optimum solution for minimum microhardness was found at 450 Amp welding current, 38 cpm welding speed, 34-volt arc voltage and included angle of 60⁰. The optimum value of microhardness was (186.7 HV). Eventually, the experimental and predicted results of microhardness were found in good agreement with 4.6%. maximum error.https://etj.uotechnology.edu.iq/article_175292_1095e85580a84a1fa6eb88f194309be6.pdfsawmicrohardnesswelding parametersdoersm
spellingShingle Sadeq Bakhy
Samir Amin
Fouad Abdullah
Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60
Engineering and Technology Journal
saw
microhardness
welding parameters
doe
rsm
title Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60
title_full Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60
title_fullStr Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60
title_full_unstemmed Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60
title_short Influence of SAW Welding Parameters on Microhardness of Steel A516-Gr60
title_sort influence of saw welding parameters on microhardness of steel a516 gr60
topic saw
microhardness
welding parameters
doe
rsm
url https://etj.uotechnology.edu.iq/article_175292_1095e85580a84a1fa6eb88f194309be6.pdf
work_keys_str_mv AT sadeqbakhy influenceofsawweldingparametersonmicrohardnessofsteela516gr60
AT samiramin influenceofsawweldingparametersonmicrohardnessofsteela516gr60
AT fouadabdullah influenceofsawweldingparametersonmicrohardnessofsteela516gr60