Finite Element Analysis of Shrinkage Phenomena in Stereolithography and Development of a new hatching method

Shrinkage of stereolithographic parts is one of the most important issues in stereolithography. This shrinkage mostly occurs while post curing in UV chamber. This phenomenon is one of the main causes of inaccuracy in stereolithographic parts. In this paper a novel method is proposed to simulate the shrinkage in stereolithographic parts. The FE simulations are performed considering the curing curves caused by laser movement on resin surface with respect to different hatching methods in SLA machines. Specifically,STAR-WEAVE hatching method is simulated. Also a novel hatching method is proposed and the shrinkage is also investigated in this method. The results are clearly show that the shrinkage is reduced notably using this new hatching method.

Finite Element Analysis of Shrinkage Phenomena in Stereolithography and Development of a new hatching method Keywords:

Stereolithography , Shrinkage , FE Simulation

Finite Element Analysis of Shrinkage Phenomena in Stereolithography and Development of a new hatching method authors

R Nosouhi

Ph.D. Student, Faculty of Mechanical Engineering, Isfahan University of Technology

S Rahmati

Associate Professor, Faculty of Mechanical Engineering, Imam-Hossein University

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Link to this Paper:

https://civilica.com/doc/81659

Document National Code:

ICME10_021

Index date: 20 November 2009

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Nosouhi, R and Rahmati, S,1388,Finite Element Analysis of Shrinkage Phenomena in Stereolithography and Development of a new hatching method,10th Iranian Conference on Manufacturing Engineering (ICME 2010),Babol,https://civilica.com/doc/81659

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Ranking of Isfahan University of Technology

Type of center: دانشگاه دولتی

Paper count: 17,159

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