Correlation of Warpage Predicted with Computer Simulation to Actual Warpage for a Glass-Reinforced Nylon Powertrain Part 970077

The warpage of an injection molded 50% long glass (by wt.), nylon (PA66) composite part was studied experimentally and correlated to simulation. The simulation was performed using the Moldflow Fiber module, and Moldflow with empirical shrinkage coefficients. The results consisted of out-of-plane deflection on the mating surface and shrinkage between locations on the perimeter of the part. The results compared favorably to experimental results for the direction of warp. The effect of different packing phase parameters on warp was not predicted correctly. The predicted magnitude of warp varied greatly between the two computer programs.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.