The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi

This research investigates the performance of small wire submerged arc welding (SAW) on carbon steel material. Small wire submerged arc welding is an innovation of conventional SAW using GMAW wire and machine. SAW can weld thin material and short length just like GMAW or FCAW. The correlation of wel...

Full description

Saved in:

Bibliographic Details
Main Author:	Ahmad Hamidi, Shahfuan Hanif
Format:	Thesis
Language:	English
Published:	2014
Subjects:	Control engineering systems Automatic machinery (General) Welding
Online Access:	https://ir.uitm.edu.my/id/eprint/14343/1/14343.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.14343
record_format	uketd_dc
spelling	my-uitm-ir.143432022-04-11T02:44:02Z The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi 2014-11 Ahmad Hamidi, Shahfuan Hanif Control engineering systems. Automatic machinery (General) Welding This research investigates the performance of small wire submerged arc welding (SAW) on carbon steel material. Small wire submerged arc welding is an innovation of conventional SAW using GMAW wire and machine. SAW can weld thin material and short length just like GMAW or FCAW. The correlation of welding parameters and bead geometry for IG, 2F, and 3F positions have been identified by its trend-line equations. The trend-line equations enabled the precise prediction of weld bead geometry and welding parameter that will generate quality SAW welding. By incorporating these equations into a calculator, the predicted weld bead geometry and welding parameter can be displayed digitally. The maximum Mean Absolute Deviation (MAD) between the predicted geometry and the experimental results is O.5mm, 95% of the deviation or error in predicted geometry when compared experimental welding is less than I.Omm. This level of prediction accuracy is good for industry application. Three Welding Procedure Specification (WPS) tests were prepared, tested and qualified without trial and error. Successful qualification of WPS to AWS D1.1 for various positions and preparation of quality samples show that the SAW can be performed with small diameter wire consumable. The quality of weld metal deposit of small wire SAW was tested, evaluated to the quality requirement of AWS A5.I8.The result of X-ray, tensile test, hardness and charpy impact results complied with the requirement of code. The fracture mechanics samples prepared to BS7448, to determine the criteria for planar crack propagation in the weld metaL The analysis of load versus CTOD (Crack Tip Opening Displacement) tests revealed the value of fracture toughness, Kr-, the equivalent to plane-strain fracture toughness, KIc. If stress were lower than this critical value, the weld will not fail. 2014-11 Thesis https://ir.uitm.edu.my/id/eprint/14343/ https://ir.uitm.edu.my/id/eprint/14343/1/14343.pdf text en public mphil masters Universiti Teknologi MARA Faculty of Mechanical Engineering Tham, Ghalib
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Tham, Ghalib
topic	Control engineering systems Automatic machinery (General) Welding
spellingShingle	Control engineering systems Automatic machinery (General) Welding Ahmad Hamidi, Shahfuan Hanif The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi
description	This research investigates the performance of small wire submerged arc welding (SAW) on carbon steel material. Small wire submerged arc welding is an innovation of conventional SAW using GMAW wire and machine. SAW can weld thin material and short length just like GMAW or FCAW. The correlation of welding parameters and bead geometry for IG, 2F, and 3F positions have been identified by its trend-line equations. The trend-line equations enabled the precise prediction of weld bead geometry and welding parameter that will generate quality SAW welding. By incorporating these equations into a calculator, the predicted weld bead geometry and welding parameter can be displayed digitally. The maximum Mean Absolute Deviation (MAD) between the predicted geometry and the experimental results is O.5mm, 95% of the deviation or error in predicted geometry when compared experimental welding is less than I.Omm. This level of prediction accuracy is good for industry application. Three Welding Procedure Specification (WPS) tests were prepared, tested and qualified without trial and error. Successful qualification of WPS to AWS D1.1 for various positions and preparation of quality samples show that the SAW can be performed with small diameter wire consumable. The quality of weld metal deposit of small wire SAW was tested, evaluated to the quality requirement of AWS A5.I8.The result of X-ray, tensile test, hardness and charpy impact results complied with the requirement of code. The fracture mechanics samples prepared to BS7448, to determine the criteria for planar crack propagation in the weld metaL The analysis of load versus CTOD (Crack Tip Opening Displacement) tests revealed the value of fracture toughness, Kr-, the equivalent to plane-strain fracture toughness, KIc. If stress were lower than this critical value, the weld will not fail.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Ahmad Hamidi, Shahfuan Hanif
author_facet	Ahmad Hamidi, Shahfuan Hanif
author_sort	Ahmad Hamidi, Shahfuan Hanif
title	The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi
title_short	The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi
title_full	The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi
title_fullStr	The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi
title_full_unstemmed	The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi
title_sort	performance of small wire submerged arc welding on carbon steel / shahfuan hanif ahmad hamidi
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Mechanical Engineering
publishDate	2014
url	https://ir.uitm.edu.my/id/eprint/14343/1/14343.pdf
_version_	1783733257824632832

The performance of small wire submerged arc welding on carbon steel / Shahfuan Hanif Ahmad Hamidi

Similar Items