Numerical investigation of Cooling Performance in Classic and New Cooling Channels of Mold Core

Thermal management of the cooling process is one of the most important factors in obtaining directional and effective solidification of liquid metal in a metal mold. Various die thermal-related defects, such as localized causing shrinkage, hot tears, suck downs and also warping can occur when cooling is not controlled. This study developed a new internal section for metal die cavities with classical cooling channel, and two original cooling channel metal sections using Laser Sintering Technology (LST) method. These channels were intended to be used together. They were examined numerically to determine their effects on heat transfer and solidification of the molten metal regarding intervals. In the first 0.5-5 seconds after casting, the researchers examined temperature distributions and solidification processes for all channels. The study results revealed that solidification of the heat transfer and the molten metal was better in the original cooling channels. Production quality molding technology in order to solve the problems of mold cooling process directly affects LST method contemplated for applications to do with the specific cooling channels and the mold can be cooled at high efficiency to 70% of the core and would be of substantial improvement of product quality were observed. It is also understood that the production period can be shortened.

Keywords: CFD Analysis, Conformal Cooling Channels, LTS, Metal Molds.