Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting
This article combines the finite element simulation and experimental verification to study the effect of laser power and scanning velocity on the temperature distribution, and the size of molten pool during selective laser melting, through simulating the laser reciprocating scanning and transformati...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2018-07-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2018/V46/I7/29 |
| _version_ | 1797967132414181376 |
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| author | ZHANG Liang WU Wen-heng LU Lin NI Xiao-qing HE Bei-bei YANG Qi-yun ZHU Guo-liang GU Yun-yang |
| author_facet | ZHANG Liang WU Wen-heng LU Lin NI Xiao-qing HE Bei-bei YANG Qi-yun ZHU Guo-liang GU Yun-yang |
| author_sort | ZHANG Liang |
| collection | DOAJ |
| description | This article combines the finite element simulation and experimental verification to study the effect of laser power and scanning velocity on the temperature distribution, and the size of molten pool during selective laser melting, through simulating the laser reciprocating scanning and transformation between powder material and solidified alloy during SLM. A temperature dependent thermal-mechanical properties of materials is considered, which includes the properties conversion between powder layer and solidified alloy. By presenting a comprehensive parameter of laser heat input-laser line energy density, the effect of line energy density on molten pool in Inconel 718 alloy is summarized, and the size of molten pool can be predicted. The results indicate that temperature field isotherm distribution presents as ellipsoid with the effect of moving laser, and in addition, ellipsoid shifts to solidified alloy layer. Within the scope of the study parameters, the laser line energy density and the size of molten pool during the deformation exhibit linear growth relationship. Furthermore, several Inconel 718 alloy specimens in different laser input conditions were produced using SLM equipments, in order to verify the simulated molten pool size. The result shows that experimental measurements are in good agreement with the model predictions. |
| first_indexed | 2024-04-11T02:26:22Z |
| format | Article |
| id | doaj.art-dfe39da9c97c4c5e861cb2be29a8be96 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:26:22Z |
| publishDate | 2018-07-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-dfe39da9c97c4c5e861cb2be29a8be962023-01-02T22:49:43ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812018-07-01467293510.11868/j.issn.1001-4381.2017.000874201807000874Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser MeltingZHANG Liang0WU Wen-heng1LU Lin2NI Xiao-qing3HE Bei-bei4YANG Qi-yun5ZHU Guo-liang6GU Yun-yang7Shanghai Engineering Research Center of 3D Printing Materials, Shanghai 200437, ChinaShanghai Engineering Research Center of 3D Printing Materials, Shanghai 200437, ChinaShanghai Engineering Research Center of 3D Printing Materials, Shanghai 200437, ChinaShanghai Engineering Research Center of 3D Printing Materials, Shanghai 200437, ChinaShanghai Engineering Research Center of 3D Printing Materials, Shanghai 200437, ChinaShanghai Engineering Research Center of 3D Printing Materials, Shanghai 200437, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaDepartment of Mechanical and Aerospace Engineering, Rutgers University, Piscataway 08854, New Jersey, USAThis article combines the finite element simulation and experimental verification to study the effect of laser power and scanning velocity on the temperature distribution, and the size of molten pool during selective laser melting, through simulating the laser reciprocating scanning and transformation between powder material and solidified alloy during SLM. A temperature dependent thermal-mechanical properties of materials is considered, which includes the properties conversion between powder layer and solidified alloy. By presenting a comprehensive parameter of laser heat input-laser line energy density, the effect of line energy density on molten pool in Inconel 718 alloy is summarized, and the size of molten pool can be predicted. The results indicate that temperature field isotherm distribution presents as ellipsoid with the effect of moving laser, and in addition, ellipsoid shifts to solidified alloy layer. Within the scope of the study parameters, the laser line energy density and the size of molten pool during the deformation exhibit linear growth relationship. Furthermore, several Inconel 718 alloy specimens in different laser input conditions were produced using SLM equipments, in order to verify the simulated molten pool size. The result shows that experimental measurements are in good agreement with the model predictions.http://jme.biam.ac.cn/CN/Y2018/V46/I7/29selective laser meltingfinite element simulationtemperature fieldsize of molten poolInconel 718 alloy Inconel |
| spellingShingle | ZHANG Liang WU Wen-heng LU Lin NI Xiao-qing HE Bei-bei YANG Qi-yun ZHU Guo-liang GU Yun-yang Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting Cailiao gongcheng selective laser melting finite element simulation temperature field size of molten pool Inconel 718 alloy Inconel |
| title | Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting |
| title_full | Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting |
| title_fullStr | Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting |
| title_full_unstemmed | Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting |
| title_short | Effect of Heat Input Parameters on Temperature Field in Inconel 718 Alloy during Selective Laser Melting |
| title_sort | effect of heat input parameters on temperature field in inconel 718 alloy during selective laser melting |
| topic | selective laser melting finite element simulation temperature field size of molten pool Inconel 718 alloy Inconel |
| url | http://jme.biam.ac.cn/CN/Y2018/V46/I7/29 |
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