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Title: Influence of process parameters on stereolithography part shrinkage
Authors: Wang, W.L. 
Cheah, C.M.
Fuh, J.Y.H. 
Lu, L. 
Keywords: Process parameters
Rapid prototyping
Stereolithography (SL)
UV post-curing
Issue Date: 1996
Citation: Wang, W.L.,Cheah, C.M.,Fuh, J.Y.H.,Lu, L. (1996). Influence of process parameters on stereolithography part shrinkage. Materials and Design 17 (4) : 205-213. ScholarBank@NUS Repository.
Abstract: Post-curing is one of the essential steps in the stereolithography (SL) process, as it affects the final dimensional accuracy of a rapid prototype produced by the SL method. The purpose of post-curing processes is to fully polymerize the uncured resin retained within the structure of the green-state prototype and hence, significantly improve its mechanical properties. However, under this process, the presence of shrinkage and distortion within the prototype form one of the major sources of error in the SL process. The amount of shrinkage encountered during the postcuring process was found to be governed by the process parameters adopted during the laser-fabrication process. In this paper, the relationships between post-cure shrinkage and the various process parameters used in the SL machine have been investigated. Through the use of an experimental statistical methods, the effects of each single and multi-parameter have been studied. © 1997 Elsevier Science Ltd.
Source Title: Materials and Design
ISSN: 02613069
Appears in Collections:Staff Publications

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