Determining of the laser heat flux for three-dimensional conduction model by the sequential method
When performing a laser processing, one of the parameters to consider is the laser heat flux. This is a very important parameter of the processing. It is difficult to directly and correctly measure this parameter during the processing. Therefore, to estimate this parameter, a solution has been impl...
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| Format: | Article |
| Language: | English |
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Publishing House for Science and Technology
2020-06-01
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| Series: | Vietnam Journal of Mechanics |
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| Online Access: | https://vjs.ac.vn/index.php/vjmech/article/view/13753 |
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| author | Nguyen Nhat Phi Long Son Hoai Nguyen Nguyen Quan |
| author_facet | Nguyen Nhat Phi Long Son Hoai Nguyen Nguyen Quan |
| author_sort | Nguyen Nhat Phi Long |
| collection | DOAJ |
| description |
When performing a laser processing, one of the parameters to consider is the laser heat flux. This is a very important parameter of the processing. It is difficult to directly and correctly measure this parameter during the processing. Therefore, to estimate this parameter, a solution has been implemented. In this study, the Newton–Raphson method has been calibrated as an operational algorithm to evaluate the laser heat flux value accurately in the 3-D conduction model. The outstanding features in this algorithm: the unaware absorption coefficient's functional form is no preset, and the nonlinear least-squares are no necessary. To confirm the effectiveness of the presented method, the paper has given two specific applications. Indeed, in this research, based on the results that have been achieved in two illustrations, the sequential method to determine the inversely laser heat flux in the three-dimensional conduction model is a reasonable, correct, and powerful method.
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| format | Article |
| id | doaj-art-6fe8c99dc98043e7ab0fd3418db6efd5 |
| institution | OA Journals |
| issn | 0866-7136 2815-5882 |
| language | English |
| publishDate | 2020-06-01 |
| publisher | Publishing House for Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Mechanics |
| spelling | doaj-art-6fe8c99dc98043e7ab0fd3418db6efd52025-08-20T02:10:38ZengPublishing House for Science and TechnologyVietnam Journal of Mechanics0866-71362815-58822020-06-0142210.15625/0866-7136/13753Determining of the laser heat flux for three-dimensional conduction model by the sequential methodNguyen Nhat Phi Long0https://orcid.org/0000-0003-2303-5989Son Hoai Nguyen1https://orcid.org/0000-0002-9343-9164Nguyen Quan2Ho Chi Minh City University of Technology and Education, VietnamHo Chi Minh City University of Technology and Education, VietnamPham Van Dong University, Quang Ngai, Vietnam When performing a laser processing, one of the parameters to consider is the laser heat flux. This is a very important parameter of the processing. It is difficult to directly and correctly measure this parameter during the processing. Therefore, to estimate this parameter, a solution has been implemented. In this study, the Newton–Raphson method has been calibrated as an operational algorithm to evaluate the laser heat flux value accurately in the 3-D conduction model. The outstanding features in this algorithm: the unaware absorption coefficient's functional form is no preset, and the nonlinear least-squares are no necessary. To confirm the effectiveness of the presented method, the paper has given two specific applications. Indeed, in this research, based on the results that have been achieved in two illustrations, the sequential method to determine the inversely laser heat flux in the three-dimensional conduction model is a reasonable, correct, and powerful method. https://vjs.ac.vn/index.php/vjmech/article/view/13753laser processinglaser flux3-D heat conduction modelmodified Newton–Raphson (MNR) methodsequential method |
| spellingShingle | Nguyen Nhat Phi Long Son Hoai Nguyen Nguyen Quan Determining of the laser heat flux for three-dimensional conduction model by the sequential method Vietnam Journal of Mechanics laser processing laser flux 3-D heat conduction model modified Newton–Raphson (MNR) method sequential method |
| title | Determining of the laser heat flux for three-dimensional conduction model by the sequential method |
| title_full | Determining of the laser heat flux for three-dimensional conduction model by the sequential method |
| title_fullStr | Determining of the laser heat flux for three-dimensional conduction model by the sequential method |
| title_full_unstemmed | Determining of the laser heat flux for three-dimensional conduction model by the sequential method |
| title_short | Determining of the laser heat flux for three-dimensional conduction model by the sequential method |
| title_sort | determining of the laser heat flux for three dimensional conduction model by the sequential method |
| topic | laser processing laser flux 3-D heat conduction model modified Newton–Raphson (MNR) method sequential method |
| url | https://vjs.ac.vn/index.php/vjmech/article/view/13753 |
| work_keys_str_mv | AT nguyennhatphilong determiningofthelaserheatfluxforthreedimensionalconductionmodelbythesequentialmethod AT sonhoainguyen determiningofthelaserheatfluxforthreedimensionalconductionmodelbythesequentialmethod AT nguyenquan determiningofthelaserheatfluxforthreedimensionalconductionmodelbythesequentialmethod |