Effects of orifice shape in contour crafting of ceramic materials

This paper presents the experimentation and modeling efforts at the University of Southern California, Los Angeles, to study the material flow patterns in the extrusion and deposition stages of the Contour Crafting (CC) process. A preliminary finite element analysis (FEA) was conducted for extrusion...

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Bibliographic Details
Published inRapid prototyping journal Vol. 8; no. 3; pp. 147 - 160
Main Authors Kwon, Hongkyu, Bukkapatnam, Satish, Khoshnevis, Behrokh, Saito, Jason
Format Journal Article
LanguageEnglish
Published Bradford MCB UP Ltd 01.08.2002
Emerald Group Publishing Limited
Subjects
Ceramics
Colleges & universities
Finite element analysis
Fluid dynamics
Geometry
Production methods
Rapid prototyping
Simulation
Soil mechanics
Studies
Viscoelasticity
United States > US
Deposition
Finite element analysis
Ceramics
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Summary:This paper presents the experimentation and modeling efforts at the University of Southern California, Los Angeles, to study the material flow patterns in the extrusion and deposition stages of the Contour Crafting (CC) process. A preliminary finite element analysis (FEA) was conducted for extrusion and deposition mechanisms of CC with ceramic materials (e.g. clay) as the fabrication material. Using the FEA simulations, certain basic understandings of the effect of extrusion orifice geometry on the performance of CC were derived. A square orifice was found to be aptly suited, both in terms of delivering excellent fusion between layers as well as creating the desired external surface profile. The experimental observations support these results.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1355-2546
1758-7670
DOI:10.1108/13552540210430988