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Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed

The welding and joining industry in the past few decades has witnessed a huge growth in pursuit of process optimization and design minimization due to the continued escalation of prices. A relatively typical new welding process that requires wide attention in process optimization for an ideal low de...

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Main Author: Mohamed, Mohamed Ackiel
Format: Thesis
Language:English
Published: 2017
Subjects:
TJ Mechanical engineering and machinery
Aluminum
Online Access:https://ir.uitm.edu.my/id/eprint/90954/1/90954.pdf
https://ir.uitm.edu.my/id/eprint/90954/
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spelling my.uitm.ir.909542024-03-11T14:25:06Z https://ir.uitm.edu.my/id/eprint/90954/ Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed Mohamed, Mohamed Ackiel TJ Mechanical engineering and machinery Aluminum The welding and joining industry in the past few decades has witnessed a huge growth in pursuit of process optimization and design minimization due to the continued escalation of prices. A relatively typical new welding process that requires wide attention in process optimization for an ideal low defect joint and life cycle improvement is friction stir welding due to its advantage of having minimal parameters to be controlled during the process. However, despite its many advantages tensile residual stress in friction stir welded joints remains to be a significant concern due to its extensive clamping and stirring process causing a lower fatigue resistance particularly in structures subjected to fluctuating loads triggering a need for improvement by utilizing modern post-weld treatment processes. Aiming to apply the HFMI method of pneumatic impact treatment (PIT) to enhance the fatigue performance of a 6 mm thick AA6061-T651 FSW butt joint, this research consisted of three main phases. The initial phase focused on the optimization of the rotational and traverse speed based on multiple mechanical properties and quality features, which emphasized on the tensile strength, hardness and the weld quality class using the Multiobjective Taguchi Method (MTM). Furthermore, the first order model for predicting the mechanical properties and weld quality class was derived by applying Response Surface Methodology (RSM). 2017 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/90954/1/90954.pdf Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed. (2017) PhD thesis, thesis, Universiti Teknologi MARA (UiTM).
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic TJ Mechanical engineering and machinery
Aluminum
spellingShingle TJ Mechanical engineering and machinery
Aluminum
Mohamed, Mohamed Ackiel
Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed
description The welding and joining industry in the past few decades has witnessed a huge growth in pursuit of process optimization and design minimization due to the continued escalation of prices. A relatively typical new welding process that requires wide attention in process optimization for an ideal low defect joint and life cycle improvement is friction stir welding due to its advantage of having minimal parameters to be controlled during the process. However, despite its many advantages tensile residual stress in friction stir welded joints remains to be a significant concern due to its extensive clamping and stirring process causing a lower fatigue resistance particularly in structures subjected to fluctuating loads triggering a need for improvement by utilizing modern post-weld treatment processes. Aiming to apply the HFMI method of pneumatic impact treatment (PIT) to enhance the fatigue performance of a 6 mm thick AA6061-T651 FSW butt joint, this research consisted of three main phases. The initial phase focused on the optimization of the rotational and traverse speed based on multiple mechanical properties and quality features, which emphasized on the tensile strength, hardness and the weld quality class using the Multiobjective Taguchi Method (MTM). Furthermore, the first order model for predicting the mechanical properties and weld quality class was derived by applying Response Surface Methodology (RSM).
format Thesis
author Mohamed, Mohamed Ackiel
author_facet Mohamed, Mohamed Ackiel
author_sort Mohamed, Mohamed Ackiel
title Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed
title_short Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed
title_full Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed
title_fullStr Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed
title_full_unstemmed Fatigue life enhancement for friction stir welded AA6061 butt joint through high frequency mechanical impact (HFMI) of pneumatic impact treatment (PIT) / Mohamed Ackiel Mohamed
title_sort fatigue life enhancement for friction stir welded aa6061 butt joint through high frequency mechanical impact (hfmi) of pneumatic impact treatment (pit) / mohamed ackiel mohamed
publishDate 2017
url https://ir.uitm.edu.my/id/eprint/90954/1/90954.pdf
https://ir.uitm.edu.my/id/eprint/90954/
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score 13.211869

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