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Thermal effects on stereolithography tools during injection moulding

Armando Sá Ribeiro Jr (Lecturer at the Federal University of Bahia, Bahia, Brazil)
Neil Hopkinson (Lecturer at Loughborough University, Leicestershire, UK)
Carlos Henrique Ahrens (Professor at the Federal University of Santa Catarina, Santa Catarina, Brazil)

Rapid Prototyping Journal

ISSN: 1355-2546

Article publication date: 1 July 2004

Abstract

In this work, the changes to stereolithography (SL) resin mechanical properties during the injection moulding process were evaluated. A multi‐impression SL mould was built and used to inject a series of small flat mouldings. The fixed half SL tool insert included recesses to accommodate tensile test specimens. Tensile test specimens made from SL resin were positioned in these recesses and plastic parts were injected. After injecting a predetermined number of mouldings, tensile tests were performed using the tensile test specimens. The results from the tensile tests show that the thermal cycling encountered during the injection moulding process did not significantly affect the mechanical properties of the resin. Observations indicate that decrease in the temperatures encountered in the tool may lead to longer tool life.

Keywords

Citation

Sá Ribeiro, A., Hopkinson, N. and Henrique Ahrens, C. (2004), "Thermal effects on stereolithography tools during injection moulding", Rapid Prototyping Journal, Vol. 10 No. 3, pp. 176-180. https://doi.org/10.1108/13552540410538996

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited