Transient temperature field simulation for injection mold based on birth and death element technique

In this paper, the heat transfer process of an injection mold heated by electricity was studied. A model used to study the transient heat transfer process was established. By using birth and death finite element simulation technique, the variation of mold temperature during the whole injection molding cycle was obtained. Engineering experiment proved that the simulated results were basically the same with the actual test results. The present method and obtained results could provide an important theoretical basis for optimizing heating rods in the mold cavity plate in order to improve product quality.