Non-contact sheet forming using lasers applied to a high strength aluminum alloy
Laser beam forming (LBF) is a contactless mechanical process accomplished by the introduction of thermal stresses on the surface of a material using a laser in order to induce plastic deformation. In this work, LBF was performed on 1.6 mm thick sheets of a high strength aluminum alloy, AA6013-T4 cla...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-07-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785416300011 |
| _version_ | 1818300959451774976 |
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| author | Rafael Humberto Mota Siqueira Sheila Medeiros Carvalho Ivan Kwei Liu Kam Rudimar Riva Milton Sergio Fernandes Lima |
| author_facet | Rafael Humberto Mota Siqueira Sheila Medeiros Carvalho Ivan Kwei Liu Kam Rudimar Riva Milton Sergio Fernandes Lima |
| author_sort | Rafael Humberto Mota Siqueira |
| collection | DOAJ |
| description | Laser beam forming (LBF) is a contactless mechanical process accomplished by the introduction of thermal stresses on the surface of a material using a laser in order to induce plastic deformation. In this work, LBF was performed on 1.6 mm thick sheets of a high strength aluminum alloy, AA6013-T4 class by using a defocused continuous Yb-fiber laser beam of 0.6 mm in diameter on the sheet top surface. The laser power and process speed were varied from 200 W to 2000 W and from 3 to 30 mm/s, respectively. For these experimental conditions, the bending angle of the sheet ranged from 0.1° to 2.5° per run. In the highest bending angle condition, 1000 W and 30 mm/s, the depth of remelted pool was 0.6 mm and the microstructure near the plate bottom surface remained unaltered. For the whole set of experimental conditions, the hardness remained constant at approximately 100 HV, which is similar to the base material. In order to verify the applicability of the method, some previously T-welded sheets were straightened. The method was efficient in correcting the distortion of the sheets with a bending angle up to 5°. |
| first_indexed | 2024-12-13T05:15:24Z |
| format | Article |
| id | doaj.art-47c2446bb6714be297353434fe49048e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-13T05:15:24Z |
| publishDate | 2016-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-47c2446bb6714be297353434fe49048e2022-12-21T23:58:27ZengElsevierJournal of Materials Research and Technology2238-78542016-07-015327528110.1016/j.jmrt.2016.02.002Non-contact sheet forming using lasers applied to a high strength aluminum alloyRafael Humberto Mota Siqueira0Sheila Medeiros Carvalho1Ivan Kwei Liu Kam2Rudimar Riva3Milton Sergio Fernandes Lima4Space Sciences and Technology Program, Instituto Tecnológico de Aeronáutica, São José dos Campos, SP, BrazilSpace Propulsion Division, Instituto de Aeronáutica e Espaço, São José dos Campos, SP, BrazilInstituto de Ciência e Tecnologia, Universidade Federal de São Paulo, São José dos Campos, SP, BrazilSpace Sciences and Technology Program, Instituto Tecnológico de Aeronáutica, São José dos Campos, SP, BrazilSpace Sciences and Technology Program, Instituto Tecnológico de Aeronáutica, São José dos Campos, SP, BrazilLaser beam forming (LBF) is a contactless mechanical process accomplished by the introduction of thermal stresses on the surface of a material using a laser in order to induce plastic deformation. In this work, LBF was performed on 1.6 mm thick sheets of a high strength aluminum alloy, AA6013-T4 class by using a defocused continuous Yb-fiber laser beam of 0.6 mm in diameter on the sheet top surface. The laser power and process speed were varied from 200 W to 2000 W and from 3 to 30 mm/s, respectively. For these experimental conditions, the bending angle of the sheet ranged from 0.1° to 2.5° per run. In the highest bending angle condition, 1000 W and 30 mm/s, the depth of remelted pool was 0.6 mm and the microstructure near the plate bottom surface remained unaltered. For the whole set of experimental conditions, the hardness remained constant at approximately 100 HV, which is similar to the base material. In order to verify the applicability of the method, some previously T-welded sheets were straightened. The method was efficient in correcting the distortion of the sheets with a bending angle up to 5°.http://www.sciencedirect.com/science/article/pii/S2238785416300011LasersAluminum alloysSheet formingLaser beam welding |
| spellingShingle | Rafael Humberto Mota Siqueira Sheila Medeiros Carvalho Ivan Kwei Liu Kam Rudimar Riva Milton Sergio Fernandes Lima Non-contact sheet forming using lasers applied to a high strength aluminum alloy Journal of Materials Research and Technology Lasers Aluminum alloys Sheet forming Laser beam welding |
| title | Non-contact sheet forming using lasers applied to a high strength aluminum alloy |
| title_full | Non-contact sheet forming using lasers applied to a high strength aluminum alloy |
| title_fullStr | Non-contact sheet forming using lasers applied to a high strength aluminum alloy |
| title_full_unstemmed | Non-contact sheet forming using lasers applied to a high strength aluminum alloy |
| title_short | Non-contact sheet forming using lasers applied to a high strength aluminum alloy |
| title_sort | non contact sheet forming using lasers applied to a high strength aluminum alloy |
| topic | Lasers Aluminum alloys Sheet forming Laser beam welding |
| url | http://www.sciencedirect.com/science/article/pii/S2238785416300011 |
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