抄録
The purpose of this study is to verify the advantage of lower frictional plating film on the die of injection molding. From the point of die damages and accuracy of plastic moldings, the molding experiments and finite element analysis are conducted. As the results, the plastic moldings are locally deformed at bottom and center due to cooling shrink and mold release, so that the surface of die is suffered the compressive stress by local contact, and the equivalent stress is increased on the contact area. However, the equivalent stress is able to decrease by lower frictional co-efficiency of die surface with using lower frictional plating film. It is possible that the damage of die is restrained and the plastic moldings are lower distorted.
