GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387

Tailored orbital welding is a joining process of tubular product with dissimilar material and size depending on the application environment. One of the most common industries that apply this process is in power plant boiler water piping system. Dissimilar material is used to transmit water at variou...

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Main Author:	Mohd Noh, Mohd Zakaria
Format:	Thesis
Language:	English English
Published:	2016
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/18594/1/GMAW%20Parameters%20Effects%20On%20Microstructural%20And%20Mechanical%20Properties%20Of%20TOW%20SS304%20And%20BS1387%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/18594/2/GMAW%20Parameters%20Effects%20On%20Microstructural%20And%20Mechanical%20Properties%20Of%20TOW%20SS304%20And%20BS1387.pdf
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institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Mohd Noh, Mohd Zakaria GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387
description	Tailored orbital welding is a joining process of tubular product with dissimilar material and size depending on the application environment. One of the most common industries that apply this process is in power plant boiler water piping system. Dissimilar material is used to transmit water at various temperature, either in extremely high temperature water or room temperature water. In order to reduce cost and dependence on high-skill welder, tailored orbital welding of dissimilar material of Stainless Steel (SS) 304 and British Steel (BS) 1387 were performed by Gas Metal Arc Welding (GMAW) with automated fixed nozzle-rotational jig. The fixed nozzle-rotational jig was used to provide “steady hand” and constant travel speed for welding process. Thus, it will increase productivity and repeatability of the process, reducing the weld defects and produce good quality weldment. The study was focused on GMAW parameters variation effects on microstructure formation and mechanical properties of SS304 and BS1387 dissimilar material tailored orbital welding. The weldment quality was tested by performing non-destructive test and weld bead properties was studied to verify the influence of welding parameters variations. The study on microstructure formation, micro hardness and tensile strength were conducted to relate the solidification formation and mechanical properties. In addition, thermal effect was studied to understand the microstructure and micro hardness variations of tailored orbital welding. In this study, Design of Experiment (DOE) was employed to generate process parameter using Response Surface Methodology (RSM) method. Welding parameters include arc current, arc voltage and travel speed as input response, whilst, mechanical properties include micro hardness and tensile strength as output response. The effects of welding parameters on mechanical properties were also studied. Results from non-destructive test show no major defect was occurred. The weld bead dimension studies showed variation in welding parameters affect the weld bead formation. The heat generated during welding process also affect the microstructural and mechanical properties. The micro hardness value and tensile strength at weldment is higher than base material. The mathematical model for predicting hardness and tensile value was generated and validated. The validation fell within 90% prediction interval. The optimize parameters were generated in maximizing hardness and tensile value.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mohd Noh, Mohd Zakaria
author_facet	Mohd Noh, Mohd Zakaria
author_sort	Mohd Noh, Mohd Zakaria
title	GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387
title_short	GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387
title_full	GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387
title_fullStr	GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387
title_full_unstemmed	GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387
title_sort	gmaw parameters effects on microstructural and mechanical properties of tow ss304 and bs1387
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Manufacturing Engineering
publishDate	2016
url	http://eprints.utem.edu.my/id/eprint/18594/1/GMAW%20Parameters%20Effects%20On%20Microstructural%20And%20Mechanical%20Properties%20Of%20TOW%20SS304%20And%20BS1387%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/18594/2/GMAW%20Parameters%20Effects%20On%20Microstructural%20And%20Mechanical%20Properties%20Of%20TOW%20SS304%20And%20BS1387.pdf
_version_	1747833939319324672
spelling	my-utem-ep.185942021-10-08T15:32:25Z GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387 2016 Mohd Noh, Mohd Zakaria T Technology (General) TK Electrical engineering. Electronics Nuclear engineering Tailored orbital welding is a joining process of tubular product with dissimilar material and size depending on the application environment. One of the most common industries that apply this process is in power plant boiler water piping system. Dissimilar material is used to transmit water at various temperature, either in extremely high temperature water or room temperature water. In order to reduce cost and dependence on high-skill welder, tailored orbital welding of dissimilar material of Stainless Steel (SS) 304 and British Steel (BS) 1387 were performed by Gas Metal Arc Welding (GMAW) with automated fixed nozzle-rotational jig. The fixed nozzle-rotational jig was used to provide “steady hand” and constant travel speed for welding process. Thus, it will increase productivity and repeatability of the process, reducing the weld defects and produce good quality weldment. The study was focused on GMAW parameters variation effects on microstructure formation and mechanical properties of SS304 and BS1387 dissimilar material tailored orbital welding. The weldment quality was tested by performing non-destructive test and weld bead properties was studied to verify the influence of welding parameters variations. The study on microstructure formation, micro hardness and tensile strength were conducted to relate the solidification formation and mechanical properties. In addition, thermal effect was studied to understand the microstructure and micro hardness variations of tailored orbital welding. In this study, Design of Experiment (DOE) was employed to generate process parameter using Response Surface Methodology (RSM) method. Welding parameters include arc current, arc voltage and travel speed as input response, whilst, mechanical properties include micro hardness and tensile strength as output response. The effects of welding parameters on mechanical properties were also studied. Results from non-destructive test show no major defect was occurred. The weld bead dimension studies showed variation in welding parameters affect the weld bead formation. The heat generated during welding process also affect the microstructural and mechanical properties. The micro hardness value and tensile strength at weldment is higher than base material. The mathematical model for predicting hardness and tensile value was generated and validated. The validation fell within 90% prediction interval. The optimize parameters were generated in maximizing hardness and tensile value. UTeM 2016 Thesis http://eprints.utem.edu.my/id/eprint/18594/ http://eprints.utem.edu.my/id/eprint/18594/1/GMAW%20Parameters%20Effects%20On%20Microstructural%20And%20Mechanical%20Properties%20Of%20TOW%20SS304%20And%20BS1387%2024%20Pages.pdf text en public http://eprints.utem.edu.my/id/eprint/18594/2/GMAW%20Parameters%20Effects%20On%20Microstructural%20And%20Mechanical%20Properties%20Of%20TOW%20SS304%20And%20BS1387.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=100890 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering 1. AK Steel., 2014. 304/304L SS Product Data Sheet. 304/304L, pp.7–8. [online] Available at:http://www.aksteel.com/pdf/markets_products/stainless/austenitic/304304ldatasheet.pdf. [Accessed on 10 May 2016]. 2. Akbari, D., and Sattari-Far, I., 2009. Effect of the welding heat input on residual stresses in butt-welds of dissimilar pipe joints. 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GMAW Parameters Effects On Microstructural And Mechanical Properties Of TOW SS304 And BS1387

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