A comparison between stereolithography and aluminium injection moulding tooling

Neil Hopkinson (Neil Hopkinson is at the Rapid Manufacturing Research Group, Department of Mechanical and Manufacturing Engineering at De Montfort University, Leicester, UK.)
Phill Dickens (Phill Dickens is at the Department of Mechanical and Manufacturing Engineering both at De Montfort University, Leicester, UK.)

Rapid Prototyping Journal

ISSN: 1355-2546

Publication date: 1 December 2000

Abstract

Advances in rapid prototyping and machining have resulted in reduced lead times for injection moulding tooling. Comparisons between aluminium and stereolithography (SL) tools are made with regard to the ejection forces required to push mouldings from the tools, heat transfer through the tools and the surface roughness of the tools. The results show that ejection forces for both types of tools are increased when a longer cooling time prior to ejection is used. The ejection forces required from a rough aluminium tool are considerably higher than those from a smooth aluminium tool. SL tools do not appear to be subjected to any smoothing as a result of moulding polypropylene parts. The rubber like nature of the tool’s surface is as a direct consequence of the low glass transition temperature and low thermal conductivity of the tool material. Further potential benefits of the low thermal properties of the tool are discussed.

Keywords

Citation

Hopkinson, N. and Dickens, P. (2000), "A comparison between stereolithography and aluminium injection moulding tooling", Rapid Prototyping Journal, Vol. 6 No. 4, pp. 253-258. https://doi.org/10.1108/13552540010373353

Download as .RIS

Publisher

:

MCB UP Ltd

Copyright © 2000, MCB UP Limited

Please note you might not have access to this content

You may be able to access this content by login via Shibboleth, Open Athens or with your Emerald account.
If you would like to contact us about accessing this content, click the button and fill out the form.
To rent this content from Deepdyve, please click the button.