A double raster laser scanning strategy for rapid die-less bending of 3D shape
Double raster scanning approach to 3D laser forming was investigated to obtain a large deformation with one-step laser irradiation, avoiding repetitive scanning. The magnitude of the deformation during raster scanning was found to be strongly dependent on the overlapping between adjacent passes, whi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-09-01
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| Series: | Journal of Materials Research and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785419308294 |
| _version_ | 1818190799046705152 |
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| author | Daniyal Abolhasani Seyed Mohammad Hossein Seyedkashi Yong-Tae Kim Mohammad Hoseinpour Gollo Young Hoon Moon |
| author_facet | Daniyal Abolhasani Seyed Mohammad Hossein Seyedkashi Yong-Tae Kim Mohammad Hoseinpour Gollo Young Hoon Moon |
| author_sort | Daniyal Abolhasani |
| collection | DOAJ |
| description | Double raster scanning approach to 3D laser forming was investigated to obtain a large deformation with one-step laser irradiation, avoiding repetitive scanning. The magnitude of the deformation during raster scanning was found to be strongly dependent on the overlapping between adjacent passes, which can be controlled by changing their spacing and the beam diameter. Therefore, 3D deformation during raster scanning has been analyzed at various overlap ratios, whose effect on the temperature and strain distribution were discussed. As the heat transfer mode significantly influences the uniformity of the bending process, the variations in bending angles with negative and positive overlapping ratios have also been investigated. The ratio of the longitudinal and lateral curvatures decreased with the increasing overlap ratio. Therefore, the effect of the lateral side is more important for specifying the final symmetry of the part, playing a critical role in bending with higher overlap ratios. In a rectangular part, deformation of the lateral side was found to be more difficult, showing strong dependence on the length of the scanning track, compared with the space of the adjacent passes. Through process characterization, the double raster scanning process has been well understood and proved to be a feasible approach to 3D laser forming of rectangular parts. Keywords: Raster scanning, Laser forming, Curvature, Laser bending, Overlap, Heat transfer |
| first_indexed | 2024-12-12T00:04:27Z |
| format | Article |
| id | doaj.art-c2ee517d5ec049fb9125484e32652947 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-12T00:04:27Z |
| publishDate | 2019-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c2ee517d5ec049fb9125484e326529472022-12-22T00:45:10ZengElsevierJournal of Materials Research and Technology2238-78542019-09-018547414756A double raster laser scanning strategy for rapid die-less bending of 3D shapeDaniyal Abolhasani0Seyed Mohammad Hossein Seyedkashi1Yong-Tae Kim2Mohammad Hoseinpour Gollo3Young Hoon Moon4Department of Mechanical Engineering, University of Birjand, Birjand 97175-376, IranDepartment of Mechanical Engineering, University of Birjand, Birjand 97175-376, IranDepartment of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaDepartment of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU), Lavizan, Tehran 16785-136, IranSchool of Mechanical Engineering, Pusan National University, Pusan 46241, Republic of Korea; Corresponding author.Double raster scanning approach to 3D laser forming was investigated to obtain a large deformation with one-step laser irradiation, avoiding repetitive scanning. The magnitude of the deformation during raster scanning was found to be strongly dependent on the overlapping between adjacent passes, which can be controlled by changing their spacing and the beam diameter. Therefore, 3D deformation during raster scanning has been analyzed at various overlap ratios, whose effect on the temperature and strain distribution were discussed. As the heat transfer mode significantly influences the uniformity of the bending process, the variations in bending angles with negative and positive overlapping ratios have also been investigated. The ratio of the longitudinal and lateral curvatures decreased with the increasing overlap ratio. Therefore, the effect of the lateral side is more important for specifying the final symmetry of the part, playing a critical role in bending with higher overlap ratios. In a rectangular part, deformation of the lateral side was found to be more difficult, showing strong dependence on the length of the scanning track, compared with the space of the adjacent passes. Through process characterization, the double raster scanning process has been well understood and proved to be a feasible approach to 3D laser forming of rectangular parts. Keywords: Raster scanning, Laser forming, Curvature, Laser bending, Overlap, Heat transferhttp://www.sciencedirect.com/science/article/pii/S2238785419308294 |
| spellingShingle | Daniyal Abolhasani Seyed Mohammad Hossein Seyedkashi Yong-Tae Kim Mohammad Hoseinpour Gollo Young Hoon Moon A double raster laser scanning strategy for rapid die-less bending of 3D shape Journal of Materials Research and Technology |
| title | A double raster laser scanning strategy for rapid die-less bending of 3D shape |
| title_full | A double raster laser scanning strategy for rapid die-less bending of 3D shape |
| title_fullStr | A double raster laser scanning strategy for rapid die-less bending of 3D shape |
| title_full_unstemmed | A double raster laser scanning strategy for rapid die-less bending of 3D shape |
| title_short | A double raster laser scanning strategy for rapid die-less bending of 3D shape |
| title_sort | double raster laser scanning strategy for rapid die less bending of 3d shape |
| url | http://www.sciencedirect.com/science/article/pii/S2238785419308294 |
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