The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals

This paper discussed about the consequences of using different filer metal by metal inert gas (MIG) welding process on aluminium alloys Al 7075 sheet metal joint. Nowadays, Al 7075 is widely used in automobile and aviation industry due to its light weight, strong, and high hardness. Fusion welding,...

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Main Authors: M., Ishak, Muhammad Naqiuddin, Mat Salleh, Siti Rabiatull Aisha, Idris
Format: Article
Language:English
Published: Wessex Institute of Technology 2017
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/17588/
http://umpir.ump.edu.my/id/eprint/17588/
http://umpir.ump.edu.my/id/eprint/17588/
http://umpir.ump.edu.my/id/eprint/17588/1/fkm-2017-mishak-%20The%20Mechanical%20and%20Microstructural%20Study.pdf
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spelling ump-175882018-01-15T07:09:13Z http://umpir.ump.edu.my/id/eprint/17588/ The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals M., Ishak Muhammad Naqiuddin, Mat Salleh Siti Rabiatull Aisha, Idris TJ Mechanical engineering and machinery This paper discussed about the consequences of using different filer metal by metal inert gas (MIG) welding process on aluminium alloys Al 7075 sheet metal joint. Nowadays, Al 7075 is widely used in automobile and aviation industry due to its light weight, strong, and high hardness. Fusion welding, such as MIG and TIG were commonly used in joining the aluminium alloys due to its low cost. However, defects usually occurred using fusion welding because of the inaccurate welding parameters and types of filer metal used. The purpose of this study is to determine whether the filer metal with different elements and welding parameters affect the mechanical properties of welded Al 7075. Welding parameters used were current, voltage, welding speed, and Argon (Ar) as shielding gas. Two different types of filer metal were used which is Electrode Rod (ER) 4043 and ER5356 which is from Al-Si and Al-Mg based element, respectively. From microstructure analysis, fusion zone (FZ) of sample welded with ER4043 has a smaller grain size than that of with ER5356. Both filer produced equiaxed dendritic grain at FZ. Both samples welded with ER4043 and ER5356 has lower hardness value than heat affected zone (HAZ) and base metal(BM) due to the differences in their elements where ER4043 from Al-Si and ER5356 from Al-Mg group. The weld effiiency of sample welded using ER5356 was 61% which was higher compared to sample welded using ER4043 which at 43% and both sample was brittle fractured. Sample welded with ER5356 was fractured at HAZ due to porosity while sample welded with ER4043 fractured at FZ due to the oxide inclusion. Wessex Institute of Technology 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17588/1/fkm-2017-mishak-%20The%20Mechanical%20and%20Microstructural%20Study.pdf M., Ishak and Muhammad Naqiuddin, Mat Salleh and Siti Rabiatull Aisha, Idris (2017) The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals. International Journal of Computational Methods and Experimental Measurements, 5 (5). 696 -712. ISSN 2046-0546 (print); 2046-0554 (online) https://www.witpress.com/elibrary/cmem/5/5/1718 doi: 10.2495/CMEM-V5-N5-696-712
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
M., Ishak
Muhammad Naqiuddin, Mat Salleh
Siti Rabiatull Aisha, Idris
The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals
description This paper discussed about the consequences of using different filer metal by metal inert gas (MIG) welding process on aluminium alloys Al 7075 sheet metal joint. Nowadays, Al 7075 is widely used in automobile and aviation industry due to its light weight, strong, and high hardness. Fusion welding, such as MIG and TIG were commonly used in joining the aluminium alloys due to its low cost. However, defects usually occurred using fusion welding because of the inaccurate welding parameters and types of filer metal used. The purpose of this study is to determine whether the filer metal with different elements and welding parameters affect the mechanical properties of welded Al 7075. Welding parameters used were current, voltage, welding speed, and Argon (Ar) as shielding gas. Two different types of filer metal were used which is Electrode Rod (ER) 4043 and ER5356 which is from Al-Si and Al-Mg based element, respectively. From microstructure analysis, fusion zone (FZ) of sample welded with ER4043 has a smaller grain size than that of with ER5356. Both filer produced equiaxed dendritic grain at FZ. Both samples welded with ER4043 and ER5356 has lower hardness value than heat affected zone (HAZ) and base metal(BM) due to the differences in their elements where ER4043 from Al-Si and ER5356 from Al-Mg group. The weld effiiency of sample welded using ER5356 was 61% which was higher compared to sample welded using ER4043 which at 43% and both sample was brittle fractured. Sample welded with ER5356 was fractured at HAZ due to porosity while sample welded with ER4043 fractured at FZ due to the oxide inclusion.
format Article
author M., Ishak
Muhammad Naqiuddin, Mat Salleh
Siti Rabiatull Aisha, Idris
author_facet M., Ishak
Muhammad Naqiuddin, Mat Salleh
Siti Rabiatull Aisha, Idris
author_sort M., Ishak
title The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals
title_short The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals
title_full The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals
title_fullStr The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals
title_full_unstemmed The Mechanical and Microstructural Study of Welded AA7075 Using Different Filler Metals
title_sort mechanical and microstructural study of welded aa7075 using different filler metals
publisher Wessex Institute of Technology
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/17588/
http://umpir.ump.edu.my/id/eprint/17588/
http://umpir.ump.edu.my/id/eprint/17588/
http://umpir.ump.edu.my/id/eprint/17588/1/fkm-2017-mishak-%20The%20Mechanical%20and%20Microstructural%20Study.pdf
first_indexed 2023-09-18T22:24:23Z
last_indexed 2023-09-18T22:24:23Z
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