Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique

Innovative welding technique for joining aluminum and magnesium alloys in automobile, aviation, aerospace and marine industries would achieve weight reduction, high specific strength as well as increase fuel efficiency and reduce environmental pollution. Friction stir welding (FSW) is capable of joi...

Full description

Saved in:
Bibliographic Details
Main Authors: Ishak, M., Idris, Siti Rabiatull Aisha, Aiman, M. H., Yusoff, Wan Azhar
Format: Research Report
Language:English
Published: 2017
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/36411/1/Dissimilar%20metal%20joining%20of%20aluminium%20and%20magnesium%20alloy%20by%20gas%20metal%20arc%20spot%20welding%20technique.wm.pdf
http://umpir.ump.edu.my/id/eprint/36411/
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Universiti Malaysia Pahang
Language: English
id my.ump.umpir.36411
record_format eprints
spelling my.ump.umpir.364112023-02-27T01:42:46Z http://umpir.ump.edu.my/id/eprint/36411/ Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique Ishak, M. Idris, Siti Rabiatull Aisha Aiman, M. H. Yusoff, Wan Azhar TJ Mechanical engineering and machinery Innovative welding technique for joining aluminum and magnesium alloys in automobile, aviation, aerospace and marine industries would achieve weight reduction, high specific strength as well as increase fuel efficiency and reduce environmental pollution. Friction stir welding (FSW) is capable of joining magnesium alloys without melting, and thus, it can eliminate problems related to solidification. Thin sheet AZ31B finds its application in automotive, aviation and also electronic devices parts such as computer casing and thin plate part in smartphone. In joining thin sheet AZ31B, laser welding is promising the best joining method compared to arc and solid state welding in producing small weldments.Magnesium alloy AZ31 was successfully welded by using friction stir welding. Shoulder to pin diameter ratio give effect to the mechanical properties and microstructural properties of AZ31 FSW. The optimum shoulder to pin ratio shows higher tensile strength with fine and equiaxed grain size that indicate higher hardness.The fine grain produced higher hardness values compared to the coarser grain with a value of 77 Hv for the optimized sample. Optimized sample has 80.5 MPa of tensile shear strength and fracture load of 800 N which could be applied in replacing Al and steel especially for the electronic parts since the strength was acceptable for a thin product. However, poor mechanical properties of welding joint between aluminum and magnesium alloys due to the formation of AlmMgn type brittle intermetallic compounds is the main barrier for extensive uses of these two alloys especially in transportation sectors.The results revealed that more significant mechanical properties were achieved with stainless steel filler compared to aluminum filler. The maximum yield strength, ultimate tensile strength and fracture toughness were 203.09 MPa, 249.33 MPa and 27.49 MPa√m respectively with steel filler; and 176.30 MPa, 226.28 MPa and 20.22 MPa√m respectively with aluminum filler.The output of this research exhibited very significant mechanical properties of the joint that can facilitate the extensive uses of A7075-T651 and AZ31B alloys in mass production of light weight vehicle structures in transportation industries. 2017 Research Report NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/36411/1/Dissimilar%20metal%20joining%20of%20aluminium%20and%20magnesium%20alloy%20by%20gas%20metal%20arc%20spot%20welding%20technique.wm.pdf Ishak, M. and Idris, Siti Rabiatull Aisha and Aiman, M. H. and Yusoff, Wan Azhar (2017) Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique. , [Research Report: Research Report] (Unpublished)
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Ishak, M.
Idris, Siti Rabiatull Aisha
Aiman, M. H.
Yusoff, Wan Azhar
Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
description Innovative welding technique for joining aluminum and magnesium alloys in automobile, aviation, aerospace and marine industries would achieve weight reduction, high specific strength as well as increase fuel efficiency and reduce environmental pollution. Friction stir welding (FSW) is capable of joining magnesium alloys without melting, and thus, it can eliminate problems related to solidification. Thin sheet AZ31B finds its application in automotive, aviation and also electronic devices parts such as computer casing and thin plate part in smartphone. In joining thin sheet AZ31B, laser welding is promising the best joining method compared to arc and solid state welding in producing small weldments.Magnesium alloy AZ31 was successfully welded by using friction stir welding. Shoulder to pin diameter ratio give effect to the mechanical properties and microstructural properties of AZ31 FSW. The optimum shoulder to pin ratio shows higher tensile strength with fine and equiaxed grain size that indicate higher hardness.The fine grain produced higher hardness values compared to the coarser grain with a value of 77 Hv for the optimized sample. Optimized sample has 80.5 MPa of tensile shear strength and fracture load of 800 N which could be applied in replacing Al and steel especially for the electronic parts since the strength was acceptable for a thin product. However, poor mechanical properties of welding joint between aluminum and magnesium alloys due to the formation of AlmMgn type brittle intermetallic compounds is the main barrier for extensive uses of these two alloys especially in transportation sectors.The results revealed that more significant mechanical properties were achieved with stainless steel filler compared to aluminum filler. The maximum yield strength, ultimate tensile strength and fracture toughness were 203.09 MPa, 249.33 MPa and 27.49 MPa√m respectively with steel filler; and 176.30 MPa, 226.28 MPa and 20.22 MPa√m respectively with aluminum filler.The output of this research exhibited very significant mechanical properties of the joint that can facilitate the extensive uses of A7075-T651 and AZ31B alloys in mass production of light weight vehicle structures in transportation industries.
format Research Report
author Ishak, M.
Idris, Siti Rabiatull Aisha
Aiman, M. H.
Yusoff, Wan Azhar
author_facet Ishak, M.
Idris, Siti Rabiatull Aisha
Aiman, M. H.
Yusoff, Wan Azhar
author_sort Ishak, M.
title Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
title_short Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
title_full Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
title_fullStr Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
title_full_unstemmed Dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
title_sort dissimilar metal joining of aluminium and magnesium alloy by gas metal arc spot welding technique
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/36411/1/Dissimilar%20metal%20joining%20of%20aluminium%20and%20magnesium%20alloy%20by%20gas%20metal%20arc%20spot%20welding%20technique.wm.pdf
http://umpir.ump.edu.my/id/eprint/36411/
_version_ 1758950524043919360