Casting Quality of Gypsum Bonded Block Investment Casting Moulds

Kerem Altug Guler; Mustafa Cigdem

doi:10.4028/www.scientific.net/AMR.445.349

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Morphological Instability in Early Stages of Solidification of Pure Metals Part I: A Theoretical Model
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Morphological Instability in Early Stages of Solidification of Pure Metals Part II: Experimental Analysis
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Modelling of Powder Forming Processes in Transient-Dynamic Analysis of Large Plastic Deformations
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 445Casting Quality of Gypsum Bonded Block Investment...

Casting Quality of Gypsum Bonded Block Investment Casting Moulds

Abstract:

In this study surface finish and dimensional charactersitics of castings produced with gypsum bonded block investment moulds were investigated. Commercial and laboratory made gypsum bonded investment moulds were used for investment casting mould making. To compare the casting quality of the investment powders, wax patterns for surface roughness specimens and linear dimension measurement specimens were designed and produced with special geometry. Wax trees were assembled with these patterns, cylindrical stainless steel perforated flasks were settled around the trees and gypsum bonded investment slurries were filled into flasks. Conventional tin bronze was subsequently cast into these moulds by vacuum assisted casting process. Afterwards, surface roughnesses of specimens were measured and linear dimensions of wax patterns and cast specimens were compared to determine percantage of dimensional change.

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Periodical:

Advanced Materials Research (Volume 445)

Pages:

349-354

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.445.349

Citation:

Cite this paper

Online since:

January 2012

Authors:

Kerem Altug Guler, Mustafa Cigdem

Keywords:

Dimensional Accuracy, Gypsum Bonded Investment, Investment Casting, Surface Roughness (SR)

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References

[1] W. K. Luk, B. W. Darvell, Effect of burnout temperature on strength of gypsum-bonded investments, Dent. Mat., 2003, 19: 552-557.

DOI: 10.1016/s0109-5641(02)00104-5

Google Scholar

[2] P. R . Beeley, R. F. Smart, Investment Casting. Cambridge: University Press, (1995).

Google Scholar

[3] P. J. Horton, Investment powders and investment casting, Gold Tech, 2000, 28: 12-17.

Google Scholar

[4] V. Faccenda, G. M. Ingo, Advances in investment and burnout furnace design, Gold Tech, 2000, 31: 22-28.

Google Scholar

[5] W. Bonilla, S. H. Masood, P. Iovenitti, An investigation of wax patterns for accuracy improvement in investment cast parts, Adc. Manf. Tech., 2001, 18: 348-356.

DOI: 10.1007/s001700170058

Google Scholar

[6] D. Ott, C. J. Raub, Investment casting of gold jewellery, Gold Bull. 1985, 18(4): 140-143.

DOI: 10.1007/bf03214696

Google Scholar

[7] E. K. Ho, B. W. Darwell, A new method for casting discrepancy: some results for a phosphate-bonded investment, J. Dent., 1998, 26(1): 59-68.

DOI: 10.1016/s0300-5712(96)00071-1

Google Scholar