Improvement of the Simulation of Shrinkage and Warpage by Characterizing the Material Behaviour More Exactly

摘要

Caused by the demand on shorter development times for technical products the use of simulation programs for the rheological, thermal and geometrical mould design increases. Up to the present, the prediction of shrinkage and warpage of semi-crystalline polymers is difficult because of the complex material behavior during the crystallization. Therefore the influence of the thermal material data und parameters on the prediction of temperature profiles is intensively discussed at the IKV. The cooling rate is also considered in the pvT-behaviour.