Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes
Understanding powder bed system behaviour in powder spreading is a fundamental issue in binder jetting additive manufacturing (BJAM). This work established a discrete element model incorporating a parallel bond model to compatibly depict local cross-links between powder particles. BJAM parameters in...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2023-12-01
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| Series: | Virtual and Physical Prototyping |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17452759.2022.2158877 |
| _version_ | 1827811251961462784 |
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| author | Shibiao Wu Yongqiang Yang Yanlu Huang Changjun Han Jie Chen Yunmian Xiao Yang Li Di Wang |
| author_facet | Shibiao Wu Yongqiang Yang Yanlu Huang Changjun Han Jie Chen Yunmian Xiao Yang Li Di Wang |
| author_sort | Shibiao Wu |
| collection | DOAJ |
| description | Understanding powder bed system behaviour in powder spreading is a fundamental issue in binder jetting additive manufacturing (BJAM). This work established a discrete element model incorporating a parallel bond model to compatibly depict local cross-links between powder particles. BJAM parameters including layer thickness, gap compensation, recoat speed, rotation speed, and layer number were studied quantitatively for their effects on recoated powder's packing density and microscopic pore size and bonded layer's breakage and layer shift. Evolutions and influence mechanisms on both layer shift and bond breakage were further elucidated. Some practical implications include: gap compensation corresponding to an ideal recoated powder structure is ∼75 μm; rotation speed should be controlled at 40–120 rad/s to avoid low-rotation-speed layer shift surge and high-rotation-speed breakage; layer shift occurring at a certain stage is irreversible and must deserve well-maintained. This research can provide theoretical guidance for developing BJAM and even support-free powder bed – based additive manufacturing. |
| first_indexed | 2024-03-11T23:02:16Z |
| format | Article |
| id | doaj.art-1fde13cb7d9f407eb9aa7712dab32dc4 |
| institution | Directory Open Access Journal |
| issn | 1745-2759 1745-2767 |
| language | English |
| last_indexed | 2024-03-11T23:02:16Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj.art-1fde13cb7d9f407eb9aa7712dab32dc42023-09-21T14:38:03ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672023-12-0118110.1080/17452759.2022.21588772158877Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processesShibiao Wu0Yongqiang Yang1Yanlu Huang2Changjun Han3Jie Chen4Yunmian Xiao5Yang Li6Di Wang7South China University of TechnologySouth China University of TechnologySouth China University of TechnologySouth China University of TechnologySouth China University of TechnologySouth China University of TechnologySouth China University of TechnologySouth China University of TechnologyUnderstanding powder bed system behaviour in powder spreading is a fundamental issue in binder jetting additive manufacturing (BJAM). This work established a discrete element model incorporating a parallel bond model to compatibly depict local cross-links between powder particles. BJAM parameters including layer thickness, gap compensation, recoat speed, rotation speed, and layer number were studied quantitatively for their effects on recoated powder's packing density and microscopic pore size and bonded layer's breakage and layer shift. Evolutions and influence mechanisms on both layer shift and bond breakage were further elucidated. Some practical implications include: gap compensation corresponding to an ideal recoated powder structure is ∼75 μm; rotation speed should be controlled at 40–120 rad/s to avoid low-rotation-speed layer shift surge and high-rotation-speed breakage; layer shift occurring at a certain stage is irreversible and must deserve well-maintained. This research can provide theoretical guidance for developing BJAM and even support-free powder bed – based additive manufacturing.http://dx.doi.org/10.1080/17452759.2022.2158877powder bed behaviourdiscrete element methodpowder spreadingreal-time curingbinder jetting additive manufacturing |
| spellingShingle | Shibiao Wu Yongqiang Yang Yanlu Huang Changjun Han Jie Chen Yunmian Xiao Yang Li Di Wang Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes Virtual and Physical Prototyping powder bed behaviour discrete element method powder spreading real-time curing binder jetting additive manufacturing |
| title | Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes |
| title_full | Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes |
| title_fullStr | Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes |
| title_full_unstemmed | Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes |
| title_short | Study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes |
| title_sort | study on powder particle behavior in powder spreading with discrete element method and its critical implications for binder jetting additive manufacturing processes |
| topic | powder bed behaviour discrete element method powder spreading real-time curing binder jetting additive manufacturing |
| url | http://dx.doi.org/10.1080/17452759.2022.2158877 |
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