An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy
Incremental Sheet Forming (ISF) is a novel cold sheet forming process. This study aims at investigating the influence of tool rotational speed on post-ISF tensile properties of two tempers of Al2219 alloy namely Al2219-O and AA2219-T6. The rotational speeds are changed from 50 to 2000 rpm while keep...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420321311 |
| _version_ | 1818853512314880000 |
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| author | Asim Ahmad Riaz Ghulam Hussain Naveed Ullah Hongyu Wei Mohammed Alkahtani Muhammad Naeem Khan |
| author_facet | Asim Ahmad Riaz Ghulam Hussain Naveed Ullah Hongyu Wei Mohammed Alkahtani Muhammad Naeem Khan |
| author_sort | Asim Ahmad Riaz |
| collection | DOAJ |
| description | Incremental Sheet Forming (ISF) is a novel cold sheet forming process. This study aims at investigating the influence of tool rotational speed on post-ISF tensile properties of two tempers of Al2219 alloy namely Al2219-O and AA2219-T6. The rotational speeds are changed from 50 to 2000 rpm while keeping the other parameters fixed. The sheets are formed into the frustum pyramid of fixed wall angle of 45°. It is found that post-ISF tensile strength of both tempers experiences a drop with increasing tool speed. The ultimate strength (UTS) of O-temper decreases from 236 to 153 MPa and its yield strength (YS) decreases from 171 to 81 MPa. Similarly, the ultimate strength of T6 temper reduces from 306 to 170 MPa and its yield strength reduces from 239 to 110 MPa. Moreover, upon forming, the O-temper generally endures a gain while the T6 temper endures a loss in strength. These properties show strong correlation with the forming induced temperature, particles density/size and grain size. It is noticed that friction heating rate at the tool sheet interface increases with the spindle speed thereby reducing the density of second phase particles and increasing the size of particles and grains. These microstructural variations in turn cause corresponding reductions in the yield and tensile strengths of material. These results identify the role of spindle rotation in ISF and thus will serve as a guideline in process design to achieve desired post-ISF properties of the chosen alloys. |
| first_indexed | 2024-12-19T07:37:59Z |
| format | Article |
| id | doaj.art-2934e24fd8c34343988419b68ec4e332 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-19T07:37:59Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-2934e24fd8c34343988419b68ec4e3322022-12-21T20:30:31ZengElsevierJournal of Materials Research and Technology2238-78542021-01-0110853867An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloyAsim Ahmad Riaz0Ghulam Hussain1Naveed Ullah2Hongyu Wei3Mohammed Alkahtani4Muhammad Naeem Khan5Department of Mechanical Engineering, University of Engineering & Technology, Peshawar, 25000, Pakistan; Corresponding author.Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Swabi, 23460, Pakistan; Corresponding author.Department of Mechanical Engineering, University of Engineering & Technology, Peshawar, 25000, PakistanCollege of Mechanical & Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, PR ChinaIndustrial Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia; Raytheon Chair for Systems Engineering (RCSE), Advanced Manufacturing Institute, King Saud University, Riyadh, 11421, Saudi Arabia; Corresponding author.Department of Mechanical Engineering, University of Engineering & Technology, Peshawar, 25000, PakistanIncremental Sheet Forming (ISF) is a novel cold sheet forming process. This study aims at investigating the influence of tool rotational speed on post-ISF tensile properties of two tempers of Al2219 alloy namely Al2219-O and AA2219-T6. The rotational speeds are changed from 50 to 2000 rpm while keeping the other parameters fixed. The sheets are formed into the frustum pyramid of fixed wall angle of 45°. It is found that post-ISF tensile strength of both tempers experiences a drop with increasing tool speed. The ultimate strength (UTS) of O-temper decreases from 236 to 153 MPa and its yield strength (YS) decreases from 171 to 81 MPa. Similarly, the ultimate strength of T6 temper reduces from 306 to 170 MPa and its yield strength reduces from 239 to 110 MPa. Moreover, upon forming, the O-temper generally endures a gain while the T6 temper endures a loss in strength. These properties show strong correlation with the forming induced temperature, particles density/size and grain size. It is noticed that friction heating rate at the tool sheet interface increases with the spindle speed thereby reducing the density of second phase particles and increasing the size of particles and grains. These microstructural variations in turn cause corresponding reductions in the yield and tensile strengths of material. These results identify the role of spindle rotation in ISF and thus will serve as a guideline in process design to achieve desired post-ISF properties of the chosen alloys.http://www.sciencedirect.com/science/article/pii/S2238785420321311Incremental formingForming induced temperatureTensile strengthMicrostructureTempersAl2219 |
| spellingShingle | Asim Ahmad Riaz Ghulam Hussain Naveed Ullah Hongyu Wei Mohammed Alkahtani Muhammad Naeem Khan An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy Journal of Materials Research and Technology Incremental forming Forming induced temperature Tensile strength Microstructure Tempers Al2219 |
| title | An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy |
| title_full | An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy |
| title_fullStr | An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy |
| title_full_unstemmed | An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy |
| title_short | An investigation on the effects of tool rotational speed and material temper on post-ISF tensile properties of Al2219 alloy |
| title_sort | investigation on the effects of tool rotational speed and material temper on post isf tensile properties of al2219 alloy |
| topic | Incremental forming Forming induced temperature Tensile strength Microstructure Tempers Al2219 |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420321311 |
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