Simulation of the cyclic injection mold-cooling process using dual reciprocity boundary element method

摘要

The injection molding process consists of three major stages in a cycle: filling, packing, and cooling. The cooling stage lasts for about three-fourths of the cycle time in a typical cycle. Generally speaking, the cyclic cooling process is athree-dimensional transient heat conduction problem associated with derivative boundary conditions and complicated boundary geometry. Although to conduct a complete analysis for both transient temperature variations of the mold and polymer meltsimultaneously is possible in principle, the computation cost is too expensive to be implemented during the actual design process. In recent years, attention has been focused on the development of a methodology that is computationally efficient and, atthe same time, accurate enough for design purpose.