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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| Format: | Conference or Workshop Item |
| Language: | English |
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IOP Publishing Ltd
2017
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| Online Access: | 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 |
| _version_ | 1848821232859873280 |
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| author | N. H., Othman M., Ishak L. H., Shah |
| author_facet | N. H., Othman M., Ishak L. H., Shah |
| author_sort | N. H., Othman |
| building | UMP Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T02:22:05Z |
| format | Conference or Workshop Item |
| id | ump-20934 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:22:05Z |
| publishDate | 2017 |
| publisher | IOP Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 (Published) http://iopscience.iop.org/article/10.1088/1757-899X/238/1/012008/pdf |
| 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 |
| title | 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_short | 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 |
| topic | TJ Mechanical engineering and machinery TS Manufactures |
| 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 |