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Effects of orifice shape in contour crafting of ceramic materials

Article Information:

Title:

Effects of orifice shape in contour crafting of ceramic materials

Author(s):

Hongkyu Kwon, Satish Bukkapatnam, Behrokh Khoshnevis, Jason Saito

Journal:

Rapid Prototyping Journal

Year:

2002

Volume:

8

Issue:

3

Page:

147 - 160


ISSN:

1355-2546


DOI:

10.1108/13552540210430988

Publisher:

MCB UP Ltd

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Abstract:

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.

Keywords:

Ceramics, Deposition, Finite element analysis


Article Type:

Conceptual paper


Article URL:

http://www.emeraldinsight.com/10.1108/13552540210430988

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