Study on Warpage of Large and Thin-Wall Injection Molded Part

Generally, it is difficult to compare the warpage of CAE simulation with which of physical part directly for large, thin-wall injection molded part. The warpage of an injection molded automotive interior door panel was discussed in this paper. The CAE simulation result was obtained via analysis in Autodesk Moldflow software with a reasonable CAE model which was constrained according to the physical measurement, and in the physical measurement, several points' positions were confirmed to make sure that the part was fixed on the gauge correctly and consistently. Finally, the warpage result of CAE simulation showed a good consistency with which was measured with a three-coordinate measuring machine.