A coupled thermo-mechanical material point model of binder jetted green part sintering.
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| Title: | A coupled thermo-mechanical material point model of binder jetted green part sintering. |
|---|---|
| Authors: | Isied, R. S.1 (AUTHOR) ruisied@berkeley.edu, Zohdi, T. I.1 (AUTHOR) zohdi@berkeley.edu |
| Source: | Computational Mechanics. Jan2026, Vol. 77 Issue 1, p19-34. 16p. |
| Subjects: | Sintering, Material point method, Three-dimensional printing, Metal fabrication, Computer simulation, Deformations (Mechanics), Thermal stresses, Rapid prototyping |
| Abstract: | Metal 3D Printing (M3DP) has rapidly grown as a viable manufacturing method over recent years. These methods promise reducing the barrier to entry for prototyping and fabricating highly complex geometries that are almost impossible to create using traditional metal manufacturing processes, such as casting and machining. There are several M3DP methods that are widely accepted for prototyping applications, but almost no methods provide mass-scale and reliable fabrication of metal components for industrial use. One potential method which has shown a lot of promise over the past few years is binder jetting (BJet). Unlike most laser-based M3DP prototyping applications which generate parts on a point-by-point basis, BJet has the ability to fabricate parts on a layer-by-layer basis allowing for arrays of components to be generated simultaneously on one print bed while maintaining a similar resolution quality compared to laser-based processes. This process is predominantly available through original equipment manufacturers (OEM) as they require extensive pre-processing of a computer-aided design (CAD) before printing. This is due to the highly porous green parts which emerge from the printer before sintering. During sintering, one can observe extreme shrinkage and warping of geometries, which widely vary based on the geometric features. This study presents a computational framework to model the qualitative deformation of BJet green parts during sintering. We utilize a fully coupled thermo-mechanical model with space-varying mechanical and thermal properties to characterize the porous, viscous material during sintering. An Affine-particle-in-cell (APIC) material point method (MPM) is used to track large deformations in the component. A 2-dimensional numerical example is shown with qualitative comparison of BJet sintered components shown in literature. Ongoing work looks to integrate this physical model with a data-driven model to more efficiently predict the deformation of M3DP components during bulk sintering. [ABSTRACT FROM AUTHOR] |
| Copyright of Computational Mechanics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 191450834 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A coupled thermo-mechanical material point model of binder jetted green part sintering. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Isied%2C+R%2E+S%2E%22">Isied, R. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ruisied@berkeley.edu</i><br /><searchLink fieldCode="AR" term="%22Zohdi%2C+T%2E+I%2E%22">Zohdi, T. I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zohdi@berkeley.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Computational+Mechanics%22">Computational Mechanics</searchLink>. Jan2026, Vol. 77 Issue 1, p19-34. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Sintering%22">Sintering</searchLink><br /><searchLink fieldCode="DE" term="%22Material+point+method%22">Material point method</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+printing%22">Three-dimensional printing</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+fabrication%22">Metal fabrication</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stresses%22">Thermal stresses</searchLink><br /><searchLink fieldCode="DE" term="%22Rapid+prototyping%22">Rapid prototyping</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Metal 3D Printing (M3DP) has rapidly grown as a viable manufacturing method over recent years. These methods promise reducing the barrier to entry for prototyping and fabricating highly complex geometries that are almost impossible to create using traditional metal manufacturing processes, such as casting and machining. There are several M3DP methods that are widely accepted for prototyping applications, but almost no methods provide mass-scale and reliable fabrication of metal components for industrial use. One potential method which has shown a lot of promise over the past few years is binder jetting (BJet). Unlike most laser-based M3DP prototyping applications which generate parts on a point-by-point basis, BJet has the ability to fabricate parts on a layer-by-layer basis allowing for arrays of components to be generated simultaneously on one print bed while maintaining a similar resolution quality compared to laser-based processes. This process is predominantly available through original equipment manufacturers (OEM) as they require extensive pre-processing of a computer-aided design (CAD) before printing. This is due to the highly porous green parts which emerge from the printer before sintering. During sintering, one can observe extreme shrinkage and warping of geometries, which widely vary based on the geometric features. This study presents a computational framework to model the qualitative deformation of BJet green parts during sintering. We utilize a fully coupled thermo-mechanical model with space-varying mechanical and thermal properties to characterize the porous, viscous material during sintering. An Affine-particle-in-cell (APIC) material point method (MPM) is used to track large deformations in the component. A 2-dimensional numerical example is shown with qualitative comparison of BJet sintered components shown in literature. Ongoing work looks to integrate this physical model with a data-driven model to more efficiently predict the deformation of M3DP components during bulk sintering. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Computational Mechanics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00466-024-02495-z Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 19 Subjects: – SubjectFull: Sintering Type: general – SubjectFull: Material point method Type: general – SubjectFull: Three-dimensional printing Type: general – SubjectFull: Metal fabrication Type: general – SubjectFull: Computer simulation Type: general – SubjectFull: Deformations (Mechanics) Type: general – SubjectFull: Thermal stresses Type: general – SubjectFull: Rapid prototyping Type: general Titles: – TitleFull: A coupled thermo-mechanical material point model of binder jetted green part sintering. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Isied, R. S. – PersonEntity: Name: NameFull: Zohdi, T. I. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 01787675 Numbering: – Type: volume Value: 77 – Type: issue Value: 1 Titles: – TitleFull: Computational Mechanics Type: main |
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