Injection molding is a widely adopted manufacturing process for producing plastic parts with high precision and consistency. It is extensively used in industries such as automotive, medical devices, electronics, and consumer goods due to its ability to produce complex geometries at high volumes and low cost per part. This study investigates the influence of cooling channel and ambient room temperatures on the thermal behavior of the mold and the injected part. A numerical analysis was performed using the Finite Element method (FEM) software ANSYS Workbench 2025 R1, focusing on heat transfer and cooling performance within the mold system. The simulation model incorporated realistic boundary conditions, including varying ambient temperatures and cooling channel water temperatures, to evaluate their effects on the temperature of the injected part.

Linear relationships were identified between the input temperatures and the resulting temperature field in the injected part, indicating a predictable thermal response under controlled conditions. These findings suggest that both cooling channel and room temperatures can be strategically managed to optimize part quality and process efficiency. Future work may focus on developing analytical models to accurately predict the temperature evolution within the molded part, enabling faster process tuning and facilitating the evaluation of temperature influence with minimal computational resources.