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Rapid prototyping with ceramic‐filled epoxy resin by optoforming

Martin Augsburg (Centre of Rapid Technologies of the BMW Group, Munich, Germany)
Sebastian Storch (Centre of Rapid Technologies of the BMW Group, Munich, Germany)
Florian Nissen (Department of Industrial Forming and Casting (UTG), University of Technology Munich, Munich, Germany)
Gerd Witt (Department of Product Engineering, Gerhard‐Mercator‐University, Duisburg‐Essen, Germany)

Rapid Prototyping Journal

ISSN: 1355-2546

Article publication date: 1 September 2004



Optoforming is meant to be a potential substitution for the established Stereolithography (SLA) process. Its potential is that different ceramic‐filled photo‐curable epoxy‐resins can theoretically be used to manufacture highly loadable parts and tools. The stiffness as well as the thermal and chemical resistance of the material used (an epoxy resin named Tooling B) are higher than those of established SLA‐materials, such as SOMOS 7120. Automotive applications, in fields where the parts are directly used parts, such as lighting housings for prototype purposes, as well as tools for the veneering process in small batch production, were successfully tested. In order to enable precise and cost‐effective fabrication, optoforming has to be developed further in the field of secondary processes, such as inline‐filtration of the material and its feeding, as well as the machine software. Currently, another competitor offers a more mature process based on upgraded SLA machines, which use a ceramic‐filled epoxy‐resin also.



Augsburg, M., Storch, S., Nissen, F. and Witt, G. (2004), "Rapid prototyping with ceramic‐filled epoxy resin by optoforming", Rapid Prototyping Journal, Vol. 10 No. 4, pp. 225-231.



Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited

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