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Phua A, Smith J, Davies CH, Cook PS, Delaney GW. Understanding the structure and dynamics of local powder packing density variations in metal additive manufacturing using set Voronoi analysis. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Farazin A, Zhang C, Gheisizadeh A, Shahbazi A. 3D bio-printing for use as bone replacement tissues: A review of biomedical application. BIOMEDICAL ENGINEERING ADVANCES 2023. [DOI: 10.1016/j.bea.2023.100075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Singh A, Rajput AS, Kapil S, Das M. Parameter sensitivity analysis of centrifugal spreaders for dispersing metallic powders and material property evaluation for DEM simulation. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Li E, Zhou Z, Wang L, Zou R, Yu A. Particle scale modelling of powder recoating and melt pool dynamics in laser powder bed fusion additive manufacturing: A review. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Escano LI, Parab ND, Guo Q, Qu M, Fezzaa K, Everhart W, Sun T, Chen L. An instrument for in situ characterization of powder spreading dynamics in powder-bed-based additive manufacturing processes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:043707. [PMID: 35489882 DOI: 10.1063/5.0076235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
In powder-bed-based metal additive manufacturing (AM), the visualization and analysis of the powder spreading process are critical for understanding the powder spreading dynamics and mechanisms. Unfortunately, the high spreading speeds, the small size of the powder, and the opacity of the materials present a great challenge for directly observing the powder spreading behavior. Here, we report a compact and flexible powder spreading system for in situ characterization of the dynamics of the powders during the spreading process by high-speed x-ray imaging. The system enables the tracing of individual powder movement within the narrow gap between the recoater and the substrate at variable spreading speeds from 17 to 322 mm/s. The instrument and method reported here provide a powerful tool for studying powder spreading physics in AM processes and for investigating the physics of granular material flow behavior in a confined environment.
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Affiliation(s)
- Luis I Escano
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Niranjan D Parab
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Qilin Guo
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Minglei Qu
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Kamel Fezzaa
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Wes Everhart
- Department of Energy's Kansas City National Security Campus Managed by Honeywell FM&T, Kansas City, Missouri 64147, USA
| | - Tao Sun
- University of Virginia, Charlottesville, Virginia 2904-4229, USA
| | - Lianyi Chen
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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Yao D, Wang J, Li M, Zhao T, Cai Y, An X, Zou R, Zhang H, Fu H, Yang X, Zou Q. Segregation of 316L stainless steel powder during spreading in selective laser melting based additive manufacturing. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.117096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wang L, Zhou Z, Li E, Shen H, Yu A. Powder deposition mechanism during powder spreading with different spreader geometries in powder bed fusion additive manufacturing. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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