Investigation into the influence of material and process on part distortion

Authors: Wiedemann, B; Dusel, K.-H.; Eschl, J

Source: Rapid Prototyping Journal, Volume 1, Number 3, 1995 , pp. 17-22(6)

Publisher: Emerald Group Publishing Limited

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Abstract:

To facilitate the selection of stereolithography resins, methods have been developed which evaluate photopolymers with respect to dynamics of polymerization and shrinkage, and also the sensitivity of polymerization with respect to process conditions and ambient influences. To use the whole potential of a resin it is necessary to identify the material behaviour related to the build process. The process parameters have to be adapted to the individual material. Describes how numerical simulation of part distortion can help in understanding the interaction between material properties and process parameters. Concludes by stating that the build process must be optimized to reduce internal stresses and to cater for post-curing effects.

Keywords: Parts; Prototyping; Simulation

Document Type: Research article

Publication date: 1995-03-01