Dynamic characteristics of plug‐assist thermoforming process |
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| Authors: | H. Hosseini B.V. Berdyshev A. Mehrabani‐Zeinabad |
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| Affiliation: | 1. Department of Chemical Engineering, University of Tabriz, Tabriz, Iran;2. Department of Polymer Engineering, Moscow State University of Environmental Engineering, Moscow, Russia;3. Department of Chemical Engineering, Isfahan University of Technology, Isfahan, Iran 84156‐83111 |
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| Abstract: | Plug‐assist thermoforming is a well‐known technique in polymer processing because of its interesting features. The dynamic value of driving‐force for the stretching process is determined based on equilibrium equation. This amount of force is required for applying to a plug to stretch a sheet. It is used for calculation of the required theoretical work and power of a plug‐assist thermoforming process. By using a nonlinear viscoelastic rheological model in the proposed mathematical model, its validity was examined by performing experimental tests on ABS sheets. POLYM. ENG. SCI., 2009. © 2008 Society of Plastics Engineers |
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