The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography

Constrained-surface-based stereolithography has recently attracted much attention from both academic and industrial communities. Despite numerous experimental, numerical and theoretical efforts, the fundamental need to reduce the separation force between the newly cured part and constrained surface...

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Main Authors: Dmitry Gritsenko, Roberto Paoli, Jie Xu
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/1/442
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author Dmitry Gritsenko
Roberto Paoli
Jie Xu
author_facet Dmitry Gritsenko
Roberto Paoli
Jie Xu
author_sort Dmitry Gritsenko
collection DOAJ
description Constrained-surface-based stereolithography has recently attracted much attention from both academic and industrial communities. Despite numerous experimental, numerical and theoretical efforts, the fundamental need to reduce the separation force between the newly cured part and constrained surface has not yet been completely solved. In this paper, we develop a fluid dynamics approach, proposed in our previous work, to theoretically model the separation force in 3D printing of a cylindrical part for flat and patterned windows. We demonstrate the possibility of separation force reduction with an accelerated movement of the printing platform. In particular, we investigate behaviors of transient parameter, its reduction rate, and separation force reduction with respect to elevation speed and time. The proposed approach involves deceleration and acceleration stages and allows to achieve the force reduction for the entire printing process. Finally, we provide implicit analytical solutions for time moments when switching between the stages can be done without noticeable increase of separation force and explicit expression for separation force in case of patterned window.
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spelling doaj.art-889d23ebfb1648b48f1be4a44e96445d2023-11-23T11:13:05ZengMDPI AGApplied Sciences2076-34172022-01-0112144210.3390/app12010442The Effect of Acceleration on the Separation Force in Constrained-Surface StereolithographyDmitry Gritsenko0Roberto Paoli1Jie Xu2Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USAConstrained-surface-based stereolithography has recently attracted much attention from both academic and industrial communities. Despite numerous experimental, numerical and theoretical efforts, the fundamental need to reduce the separation force between the newly cured part and constrained surface has not yet been completely solved. In this paper, we develop a fluid dynamics approach, proposed in our previous work, to theoretically model the separation force in 3D printing of a cylindrical part for flat and patterned windows. We demonstrate the possibility of separation force reduction with an accelerated movement of the printing platform. In particular, we investigate behaviors of transient parameter, its reduction rate, and separation force reduction with respect to elevation speed and time. The proposed approach involves deceleration and acceleration stages and allows to achieve the force reduction for the entire printing process. Finally, we provide implicit analytical solutions for time moments when switching between the stages can be done without noticeable increase of separation force and explicit expression for separation force in case of patterned window.https://www.mdpi.com/2076-3417/12/1/442separation forceNewtonian fluidconstrained surface stereolithographysurface texturingvat photopolymerization
spellingShingle Dmitry Gritsenko
Roberto Paoli
Jie Xu
The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography
Applied Sciences
separation force
Newtonian fluid
constrained surface stereolithography
surface texturing
vat photopolymerization
title The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography
title_full The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography
title_fullStr The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography
title_full_unstemmed The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography
title_short The Effect of Acceleration on the Separation Force in Constrained-Surface Stereolithography
title_sort effect of acceleration on the separation force in constrained surface stereolithography
topic separation force
Newtonian fluid
constrained surface stereolithography
surface texturing
vat photopolymerization
url https://www.mdpi.com/2076-3417/12/1/442
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