Paper Title:
A Rapid Prototyping Apparatus for Forming Ceramic Parts
  Abstract

This article proposes a rapid prototyping apparatus of selective laser sintering for forming silica ceramic green parts. The main differences between the proposed and other RP processes for forming ceramic part are the slurry material used to obtain fine layer thickness and the capability of constructing support structure to increase the dimensional accuracy of the workpiece having an overhang. The RP apparatus developed by us comprises a laser scanning system, a material paving system, and a computer control system. A CO2 laser is adopted to scan over a mixture made of a silica sol and silica powder. The silica sol acts as a binder to gel the silica powder together, which forms a 3D object using laser gelation method. A series of experiments were carried out to obtain the optimal process parameters. An SEM is employed to analyze the microstructure of the ceramic part. It has been found that the smallest layer is of 100 μm thick. The results show that both the accuracy of the material paving mechanism and the optimal process parameters can fulfill the requirements of the RP processes.

  Info
Periodical
Key Engineering Materials (Volumes 364-366)
Edited by
Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO
Pages
383-388
DOI
10.4028/www.scientific.net/KEM.364-366.383
Citation
F. H. Liu, Y. S. Liao, "A Rapid Prototyping Apparatus for Forming Ceramic Parts", Key Engineering Materials, Vols. 364-366, pp. 383-388, 2008
Online since
December 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yugang Ma, Eun Yi Kim, Seok Ho Yoon, Chin Myung Whang
1050
Authors: Shu Hua Li, Fu Chi Wang
Abstract:The ceramic coating was formed by micro-plasma arc oxidation (MPAO) on AZ91D magnesium alloy. The surface and section morphology of coatings...
2451
Authors: Y.Z. Li, Jun Zhao
Abstract:A model for designing sandwich nanocomposite ceramic tool materials with symmetrical distribution was presented. By adding nano-sized Al2O3...
1126
Authors: Zong Yin Duan, Dong Sheng Wang
Chapter 12: Laser Processing Technology
Abstract:This paper deals with the microstructure and thermal shock behavior of laser remelting of yttria-stabilized zirconia (YSZ) thermal barrier...
2502
Authors: Hai Hua Wu, Xuan Du
Chapter 1: Materials Engineering. Technologies and Processing
Abstract:It is difficult to fabricate complicated ceramic parts with conventional manufacturing methods such as injection molding and slip casting. In...
539