Die casting tool is subjected to cyclic thermal loads. The heat transfer coefficient is a parameter that determines the amount of heat transferred to the die and consequently the temperature of the die. Knowing the die temperature is essential to determine the lifetime of the die casting tool. In this M. Sc. thesis, the die temperature was measured using thermocouples. In the Magmasoft software environment, the die temperature was calculated using different heat transfer coefficients available in the literature. Based on the comparison between the measured and calculated temperatures, a validation of the heat transfer was performed. The best agreement with the measured temperatures is obtained using the modified heat transfer coefficient. Using the validated heat transfer coefficient we are able to determine the temperature of the die casting tool more accurately.
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