Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding

Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding

This study focuses on the effect of shoulder to pin diameter ratio on friction stir welding of magnesium alloy AZ31. Two pieces of AZ31 alloy with thickness of 2 mm were friction stir welded by using conventional milling machine. The shoulder to pin diameter ratio used in this experiment are 2.25, 2...

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Main Authors: N. H., Othman, M., Ishak, L. H., Shah
Format: Conference or Workshop Item
Language:English
Published: IOP Publishing Ltd 2017
Subjects:
TJ Mechanical engineering and machinery
TS Manufactures
Online Access:http://umpir.ump.edu.my/id/eprint/20934/
http://umpir.ump.edu.my/id/eprint/20934/
http://umpir.ump.edu.my/id/eprint/20934/1/Effect%20of%20shoulder%20to%20pin%20ratio%20on%20magnesium%20alloy%20Friction%20Stir%20Welding.pdf
id ump-20934
recordtype eprints
spelling ump-209342018-07-11T06:12:01Z http://umpir.ump.edu.my/id/eprint/20934/ Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding N. H., Othman M., Ishak L. H., Shah TJ Mechanical engineering and machinery TS Manufactures This study focuses on the effect of shoulder to pin diameter ratio on friction stir welding of magnesium alloy AZ31. Two pieces of AZ31 alloy with thickness of 2 mm were friction stir welded by using conventional milling machine. The shoulder to pin diameter ratio used in this experiment are 2.25, 2.5, 2.75, 3, 3.33, 3.66, 4.5, 5 and 5.5. The rotational speed and welding speed used in this study are 1000 rpm and 100 mm/min, respectively. Microstructure observation of welded area was studied by using optical microscope. Equiaxed grains were observed at the TMAZ and stir zone indicating fully plastic deformation. The grain size of stir zone increased with decreasing shoulder to pin ratio from ratio 3.33 to 5.5 due to higher heat input. It is observed that, surface galling and faying surface defect is produced when excessive heat input is applied. To evaluate the mechanical properties of this specimen, tensile test was used in this study. Shoulder to pin ratio 5.5 shows lowest tensile strength while shoulder to pin diameter ratio 3.33 shows highest tensile strength with weld efficiency 91 % from based metal. IOP Publishing Ltd 2017-10 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/20934/1/Effect%20of%20shoulder%20to%20pin%20ratio%20on%20magnesium%20alloy%20Friction%20Stir%20Welding.pdf N. H., Othman and M., Ishak and L. H., Shah (2017) Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding. In: Joining and Welding Symposium (JWS2017), 11 July 2017 , Universiti Malaysia Pahang. pp. 1-9., 238 (1). ISSN 17578981 http://iopscience.iop.org/article/10.1088/1757-899X/238/1/012008/pdf
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
TS Manufactures
spellingShingle TJ Mechanical engineering and machinery
TS Manufactures
N. H., Othman
M., Ishak
L. H., Shah
Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding
description This study focuses on the effect of shoulder to pin diameter ratio on friction stir welding of magnesium alloy AZ31. Two pieces of AZ31 alloy with thickness of 2 mm were friction stir welded by using conventional milling machine. The shoulder to pin diameter ratio used in this experiment are 2.25, 2.5, 2.75, 3, 3.33, 3.66, 4.5, 5 and 5.5. The rotational speed and welding speed used in this study are 1000 rpm and 100 mm/min, respectively. Microstructure observation of welded area was studied by using optical microscope. Equiaxed grains were observed at the TMAZ and stir zone indicating fully plastic deformation. The grain size of stir zone increased with decreasing shoulder to pin ratio from ratio 3.33 to 5.5 due to higher heat input. It is observed that, surface galling and faying surface defect is produced when excessive heat input is applied. To evaluate the mechanical properties of this specimen, tensile test was used in this study. Shoulder to pin ratio 5.5 shows lowest tensile strength while shoulder to pin diameter ratio 3.33 shows highest tensile strength with weld efficiency 91 % from based metal.
format Conference or Workshop Item
author N. H., Othman
M., Ishak
L. H., Shah
author_facet N. H., Othman
M., Ishak
L. H., Shah
author_sort N. H., Othman
title Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding
title_short Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding
title_full Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding
title_fullStr Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding
title_full_unstemmed Effect of shoulder to pin ratio on magnesium alloy Friction Stir Welding
title_sort effect of shoulder to pin ratio on magnesium alloy friction stir welding
publisher IOP Publishing Ltd
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/20934/
http://umpir.ump.edu.my/id/eprint/20934/
http://umpir.ump.edu.my/id/eprint/20934/1/Effect%20of%20shoulder%20to%20pin%20ratio%20on%20magnesium%20alloy%20Friction%20Stir%20Welding.pdf
first_indexed 2023-09-18T22:30:29Z
last_indexed 2023-09-18T22:30:29Z
_version_ 1777416252566798336

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