A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals
In additive manufacturing of metallic materials, an accurate description of the thermal histories of the built part is important for further analysis of the distortions and residual stresses, which is a big issue for additively manufactured metal products. In the present paper, a computationally vol...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-10-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/10/11/1406 |
| _version_ | 1797550126748663808 |
|---|---|
| author | Yabin Yang Xin Zhou |
| author_facet | Yabin Yang Xin Zhou |
| author_sort | Yabin Yang |
| collection | DOAJ |
| description | In additive manufacturing of metallic materials, an accurate description of the thermal histories of the built part is important for further analysis of the distortions and residual stresses, which is a big issue for additively manufactured metal products. In the present paper, a computationally volumetric heat source model based on a semianalytical thermal modeling approach is proposed. The proposed model is applied to model the thermal response during a selective laser melting (SLM) process. The interaction between the laser and the material is described using a moving volumetric heat source. High computational efficiency can be achieved with considerable accuracy. Several case studies are conducted to examine the accuracy of the proposed model. By comparing with the experimentally measured melt-pool dimensions, it is found that the error between the predictions obtained by the proposed model and the experimental results can be controlled to less than 10%. High computational efficiency can also be achieved for the proposed model. It is shown that for simulating the thermal process of scanning a single layer with the dimension of 2 mm × 2 mm, the calculation can be finished in around 110 s. |
| first_indexed | 2024-03-10T15:25:05Z |
| format | Article |
| id | doaj.art-e5c6dfb7e89e442baef7b4ecaeaa0db6 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T15:25:05Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e5c6dfb7e89e442baef7b4ecaeaa0db62023-11-20T18:11:11ZengMDPI AGMetals2075-47012020-10-011011140610.3390/met10111406A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of MetalsYabin Yang0Xin Zhou1School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaScience and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710043, ChinaIn additive manufacturing of metallic materials, an accurate description of the thermal histories of the built part is important for further analysis of the distortions and residual stresses, which is a big issue for additively manufactured metal products. In the present paper, a computationally volumetric heat source model based on a semianalytical thermal modeling approach is proposed. The proposed model is applied to model the thermal response during a selective laser melting (SLM) process. The interaction between the laser and the material is described using a moving volumetric heat source. High computational efficiency can be achieved with considerable accuracy. Several case studies are conducted to examine the accuracy of the proposed model. By comparing with the experimentally measured melt-pool dimensions, it is found that the error between the predictions obtained by the proposed model and the experimental results can be controlled to less than 10%. High computational efficiency can also be achieved for the proposed model. It is shown that for simulating the thermal process of scanning a single layer with the dimension of 2 mm × 2 mm, the calculation can be finished in around 110 s.https://www.mdpi.com/2075-4701/10/11/1406additive manufacturingthermal modelingvolumetric heat sourcecomputational efficiency |
| spellingShingle | Yabin Yang Xin Zhou A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals Metals additive manufacturing thermal modeling volumetric heat source computational efficiency |
| title | A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals |
| title_full | A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals |
| title_fullStr | A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals |
| title_full_unstemmed | A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals |
| title_short | A Volumetric Heat Source Model for Thermal Modeling of Additive Manufacturing of Metals |
| title_sort | volumetric heat source model for thermal modeling of additive manufacturing of metals |
| topic | additive manufacturing thermal modeling volumetric heat source computational efficiency |
| url | https://www.mdpi.com/2075-4701/10/11/1406 |
| work_keys_str_mv | AT yabinyang avolumetricheatsourcemodelforthermalmodelingofadditivemanufacturingofmetals AT xinzhou avolumetricheatsourcemodelforthermalmodelingofadditivemanufacturingofmetals AT yabinyang volumetricheatsourcemodelforthermalmodelingofadditivemanufacturingofmetals AT xinzhou volumetricheatsourcemodelforthermalmodelingofadditivemanufacturingofmetals |