Increase in Warpage Prediction Accuracy for Glass Filled Polyamide Material (PA66) through Integrative Simulation Approach

The warpage prediction accuracy of the simulation software depends on part geometry, material model and methodology. However, in existing software’s does not consider factors such as nonlinear mechanical properties, temperature dependent behaviour, viscoelastic behaviour transient description leading to less accuracy. Using an integrative approach, BASF has developed Ultrasim® tool overcome limitations software. In new thermomechanical stress relaxation properties were considered this is added tool. also considers time descriptions starting from packing phase moulding process, followed by actual ejection cooling. paper results predicted through approach are compared with experimental for 50% glass filled polyamide (Ultramid®A3WG10). revealed that values based closer technologies. Therefore can be used prior making real parts reduce manufacturing cost.