STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS
Many additive manufacturing processes use energy from laser beam to melt powder particles to form layered objects. This paper mainly focused its attention on some of the major factors which plays a vital role during laser melting, namely energy penetration, shrinkage, absorptivity and marangoni effe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Taylor's University
2015-04-01
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| Series: | Journal of Engineering Science and Technology |
| Subjects: | |
| Online Access: | http://jestec.taylors.edu.my/Vol%2010%20issue%204%20April%202015/Volume%20(10)%20Issue%20(4)%20509-%20525.pdf |
| _version_ | 1818917688041275392 |
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| author | K. ANTONY N. ARIVAZHAGAN |
| author_facet | K. ANTONY N. ARIVAZHAGAN |
| author_sort | K. ANTONY |
| collection | DOAJ |
| description | Many additive manufacturing processes use energy from laser beam to melt powder particles to form layered objects. This paper mainly focused its attention on some of the major factors which plays a vital role during laser melting, namely energy penetration, shrinkage, absorptivity and marangoni effect. A study was performed to simulate and validate the effect of energy density on Marangoni effect and energy penetration. Analytical solutions to
moving heat source problems were developed and their effects on process parameters viz. energy penetration through a layer of powder particles were validated. The numerical investigations demonstrated the significant effect of energy density on laser beam towards the laser track. Finally, experiments were performed to validate the simulations using Nd: YAG laser on SS316L powder particles. Thus this study would enable in optimizing the process parameters of the additive manufacturing process. |
| first_indexed | 2024-12-20T00:38:02Z |
| format | Article |
| id | doaj.art-ac40f086d9c74002892fe0240ed36ac6 |
| institution | Directory Open Access Journal |
| issn | 1823-4690 |
| language | English |
| last_indexed | 2024-12-20T00:38:02Z |
| publishDate | 2015-04-01 |
| publisher | Taylor's University |
| record_format | Article |
| series | Journal of Engineering Science and Technology |
| spelling | doaj.art-ac40f086d9c74002892fe0240ed36ac62022-12-21T19:59:41ZengTaylor's UniversityJournal of Engineering Science and Technology1823-46902015-04-01104509525STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESSK. ANTONY0N. ARIVAZHAGAN 1School of Mechanical and Building Sciences, VIT University, India 632014 School of Mechanical and Building Sciences, VIT University, India 632014School of Mechanical and Building Sciences, VIT University, India 632014 School of Mechanical and Building Sciences, VIT University, India 632014Many additive manufacturing processes use energy from laser beam to melt powder particles to form layered objects. This paper mainly focused its attention on some of the major factors which plays a vital role during laser melting, namely energy penetration, shrinkage, absorptivity and marangoni effect. A study was performed to simulate and validate the effect of energy density on Marangoni effect and energy penetration. Analytical solutions to moving heat source problems were developed and their effects on process parameters viz. energy penetration through a layer of powder particles were validated. The numerical investigations demonstrated the significant effect of energy density on laser beam towards the laser track. Finally, experiments were performed to validate the simulations using Nd: YAG laser on SS316L powder particles. Thus this study would enable in optimizing the process parameters of the additive manufacturing process.http://jestec.taylors.edu.my/Vol%2010%20issue%204%20April%202015/Volume%20(10)%20Issue%20(4)%20509-%20525.pdfSelective laser meltingEnergy densityMarangoni effectAbsorptivity |
| spellingShingle | K. ANTONY N. ARIVAZHAGAN STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS Journal of Engineering Science and Technology Selective laser melting Energy density Marangoni effect Absorptivity |
| title | STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS |
| title_full | STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS |
| title_fullStr | STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS |
| title_full_unstemmed | STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS |
| title_short | STUDIES ON ENERGY PENETRATION AND MARANGONI EFFECT DURING LASER MELTING PROCESS |
| title_sort | studies on energy penetration and marangoni effect during laser melting process |
| topic | Selective laser melting Energy density Marangoni effect Absorptivity |
| url | http://jestec.taylors.edu.my/Vol%2010%20issue%204%20April%202015/Volume%20(10)%20Issue%20(4)%20509-%20525.pdf |
| work_keys_str_mv | AT kantony studiesonenergypenetrationandmarangonieffectduringlasermeltingprocess AT narivazhagan studiesonenergypenetrationandmarangonieffectduringlasermeltingprocess |