Integrally Cored Ceramic Mold Fabricated by Ceramic Stereolithography
2010; Wiley; Volume: 8; Issue: 6 Linguagem: Inglês
10.1111/j.1744-7402.2010.02568.x
ISSN1744-7402
AutoresChang-Jun Bae, John W. Halloran,
Tópico(s)Environmental Engineering and Cultural Studies
ResumoCeramic stereolithography (SLA) was used to fabricate a ceramic investment casting mold with the integral core within a ceramic mold shell, produced in a single patternless construction from refractory-grade fused silica. The SLA build material was a photopolymerizable suspension of 60 vol% fused silica dispersed in a monomer solution based on 1,6-hexanediol diacrylate. The mold had 1047 layers, each 100 μm thick. Green body dimensions before sintering were approximately 0.7% smaller than the design within the plane of the layers, and approximately 0.3% larger than the design perpendicular to the layers. The sintering shrinkage was 10.7±0.2% in both directions.
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