Design of experiment considering two-way interactions and its application to injection molding processes with numerical analysis

The optimal design for injection molding processes is sought by using the design of experiment (DOE) and numerical analysis. DOE is designed so as to consider two-way interactions, and have been applied progressively for both mold and process designs. Numerical analyses have been carried out as DOEs for mold parameters such as runner specifications and cooling channel configurations. In order to determine optimal process parameters, experiments have been performed for various process conditions with the DOE scheduling. As a result, the quality and productivity of the product have been improved, and the proposed approach can be successfully applied to the industrial injection molding process of precision electronics parts.