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Characteristic studies of collapsibility of ABS patterns produced from FDM for investment casting

Harun, W. S. W. and Sharif, S. and Idris, M. H. and Kadirgama, K. (2009) Characteristic studies of collapsibility of ABS patterns produced from FDM for investment casting. Materials Research Innovations, 13 (3). pp. 340-343. ISSN 14328917

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Official URL: http://dx.doi.org/10.1179/143307509X441513

Abstract

A study was made of the collapsibility phenomenon of acrylonitrile butadiene styrene (ABS) P400 patterns tabulated using fused deposition modelling technique that will be used for investment casting process. There are two types of specimens: hollow (or hatching) and solid H shape ABS patterns. Results showed that the hollow patterns offered better results than the solid patterns in terms of mould cracking and internal mould cleanliness at temperature 300-500°C. However, all patterns demonstrated similar behaviour at temperatures of 550 and 600°C whereby no cracks were present and total decomposition of ABS was recognised. The results were strongly related to a fluidity phenomenon of the ABS material in conjunction with elevated temperature.

Item Type:Article
Uncontrolled Keywords:ABS, ceramic mould, FDM, investment casting, sacrificial pattern
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:13254
Deposited By: Ms Zalinda Shuratman
Deposited On:28 Jul 2011 01:15
Last Modified:28 Jul 2011 01:15

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